Archive for November, 2008

William Lindsay Everard

Sunday, November 30th, 2008

Sir William Lindsay Everard

Sir William Lindsay Everard

Born
March 13, 1891(1891-03-13)
Knighton, Leicester, United Kingdom

Died
March 11, 1949
Torquay, Devon, United Kingdom

Occupation
Brewer

Spouse(s)
Cornelia Ione Kathleen Beresford-Armstrong

Sir William Lindsay Everard (March 13, 1891 - March 11, 1949) was a brewer, politician, and philanthropist from Leicestershire, United Kingdom. As the founder and supporter of the Ratcliffe Aerodrome, Sir Lindsay was a pioneer aviator, knighted for his crucial efforts in World War II with the Air Transport Auxiliary (ATA). He controlled Everards Brewery for nearly 25 years and was a Member of Parliament.

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Pioneer Aviator

Wartime aviation has changed the course of history and Sir Lindsay Everard is an important contributor to its development. In 1930, Sir Lindsay opened Ratcliffe Aerodrome on 45 acres near his estate and Ratcliffe College. He had become President of the Leicester Aeroclub in 1928, purchasing the club a de Havilland Gipsy Moth in 1929. Named “The Quorn”, the club used Carts Field at Desford. A large air show brought 30,000 spectors to the site. Sir Lindsay purchased a de Havilland Puss Moth that he named “The Leicestershire”, and sold in July 1932. He also favored the Percival Gull Four P.1.B Mk. IIa.

Ratcliffe Aerodrome opened with a ‘Grand Air Pageant’ on September 6, 1930. Famed aviator Amy Johnson made an unexpected trip from London to participate with Sir Sefton Brancker, Director of Civil Aviation. Some 5000 spectators were treated to a show with 100 planes and staged bombings of Chinese pirates. There was one crash, but no one was killed. Ratcliffe Aerodrome was one of the finest in civil aviation with a comfortable clubhouse and an outdoor pool. The hangars were first class and the many air shows and displays had the atmosphere of a garden party.

Sir Lindsay was not a pilot himself, but hired personal pilots to travel throughout the world and participate in air racing events. He owned a de Havilland Dragon, an 8-seat aircraft, with which they won the Oasis Trophy in Cairo. With pilot Lt. Com. Phillips he won the Grosvenor Cup Air Race. Among his personal pilots was Winifred Spooner, a celebrated woman aviator. Sir Lindsay was supportive of every aspect of aviation, including gliders. He was the first president of the Model Aero Club. His airmail postage stamp collection was sold by H.R. Harmer of London on October 19 and 20, 1953 in 530 lots.

The County Flying Club was formed at Ratcliffe and in 1938 moved to a field at Rearsby on land owned by Sir Lindsay. Another member of the County Flying Club, Alexander Lance Wykes, was the Managing Director of Crowthers Limited, a Thurmaston company, that manufactured textile machinery. In 1938, Wykes negotiated a license agreement with American manufacturer Taylorcraft to build a light airplane in England. It was designated the Taylorcraft “Plus C” model and the first one built was brought by road to Sir Lindsay’s Aerodrome where it made its maiden flight on May 3, 1939. This aircraft became an important part of the war effort in World War II and a production order of 100 aircraft designated the Taylorcraft-Auster Mk 1 was placed in 1942. The Auster continued to be an important and popular plane long after the war.

With the onset of World War II, civil flying was suspended on August 31, 1939. Ratcliffe Aerodrome had a central location that made it an important field for the ATA, a network of civilian pilots that ferried new aircraft from the factories and those that needed repair. Ratcliffe Aerodrome was ferry pool no. 6 of the original 14 started in 1942. The Aerodrome grew larger during the war, adding new facilities. Some 50,000 ferrry flights passed through this ideal staging ground.

When the ATA was disbanded, the event was commemorated by an air show on October 6, 1945 that included Geoffrey de Havilland. Sir Lindsay was knighted during the war for services to aviation and commerce. The Leicester Aeroclub reformed in 1947 and drew a crowd of 10,000 for an event in 1949. Sir Lindsay passed away that year and his estate was sold to non-flyers. Ratcliffe Aerodrome closed March 25, 1950. It fell into disrepair with some of the buildings being used as barns for the surrounding farms.

Career and Philanthropy

Sir Lindsay took over the business of Everards Brewery in 1925 and remained in that position until his death in 1949. Everards was founded in 1849 by William Everard, was managed by his son Thomas, and then Sir Lindsay. The brewery specializes in ales and has more than 150 pubs around Leicestershire. The brewery was in Burton upon Trent when Sir Lindsay was in control. His son Tony Everard ran the business from 1949 to 1988 and saw the business move back to Leicester.

Sir Lindsay was elected High Sheriff of Leicestershire in 1924.

Sir Everard offered wide support to the community of Leicestershire. His contributions of land and resources to the nascent civil flying clubs in the area are detailed above. In 1927, Sir Lindsay acquired Ulverscroft Priory, a mid-13th century Augustinian house, preserving the decaying ruins from total destruction. In 1930, Sir Lindsay built Bradgate Hall to replace the wooden restaurant used for village events.

Personal

Sir William Lindsay Everard was born March 13, 1891 in Knighton, Leicester. He resided in Ratcliffe Hall in Ratcliffe on the Wreake. Sir Lindsay married Cornelia Ione Kathleen Beresford-Armstrong, Lady Everard, daughter of Captain Marcus Beresford-Armstrong. Their children included Patrick Anthony William Beresford Everard and Bettyne Ione, and granddaughter Lady Denyne Butler. Sir Lindsay died March 11, 1949 in Torquay, Devon.

Sources

  • Ratcliffe Aerodrome History at Ratcliffe College.
  • Leicestershire Aero Club
  • Everards Brewery
  • The Story of the Air Transport Auxiliary. E.C. Cheeseman.
  • The Forgotten Pilots. Lettice Curtis.
  • Aviation in Leicestershire and Rutland. Roy Bonser.

Notes

  1. ^
  2. ^ Auster Club
  3. ^ Air Transport Auxiliary
  4. ^ Leicestershire Government
  5. ^ Leicestershire Villages
  6. ^ The Peerage

Retrieved from “http://en.wikipedia.org/wiki/William_Lindsay_Everard
Categories: 1891 births | 1949 deaths | Aviation | British military personnel of World War IIHidden categories: All articles with unsourced statements | Articles with unsourced statements since October 2008

Revopak

Sunday, November 30th, 2008

The Revopak is a type of waste collection vehicle manufactured by the British company Shelvoke and Drewry.

Introduced in 1971, the Revopak was in fact a British-built clone of a French Bennes-Ray Superpac. It was among one of the first vehicles to address the problem of compacting and destroying the high content of packaging materials now found in domestic refuse.

By using a huge, hydraulic-powered rotating rake with large steel tines, refuse was scooped up from the loading hopper and forced through a set of stationary tines. The continuous rotation of the rake progressively mangled, mutilated and compacted the refuse so as to reduce the space required to dump it at the landfill site.


The Revopak compaction system, showing clearly the rotating tines and fixed teeth

Two generations of the Revopak were produced - the early 1971-1973 models used hydraulic motors which drove the compaction rake by means of chains, while the later models utilised a simpler and more robust drive system which consisted of twin synchronised hydraulic rams to operate the compaction system. Many variations were made of the basic design, including a multitude of different body lengths and payloads, plus SD developed bin lifters as an optional extra - a precursor to the modern wheeled bin collection systems of today. One disadvantage of the system was heavier fuel consumption, since the compaction system has to run continuously in order to be effective.

The Revopak was in continuous production until 1990, when SD went out of business, although the French built clone is still manufactured by SEMAT.

Retrieved from “http://en.wikipedia.org/wiki/Revopak
Categories: Vehicles | Waste collection vehicles

Bicycle culture

Sunday, November 30th, 2008


Cycling subculture: bicycle as fashion statement, London

Bicycle culture is a phrase most associated with cities and countries that feature a high rate of bicycle usage, sometimes called utility cycling, as part of their cultural identity. Several countries have established bicycle cultures, including Denmark, the Netherlands, Germany, China and Japan. It is particularly in the cities that bicycle culture is most widespread. In Copenhagen and Amsterdam, in particular, 37% and 40% respectively of all citizens ride their bike on a daily basis. In Europe, bicycle culture is generally regarded as meaning citizens using their bikes for commuting, running errands and dropping off children at school or kindergarten.

A city with a strong bicycle culture usually has a well-developed infrastructure favouring bicycles, including segregated bike lanes and extensive facilities catering to a large amount of bicycles in the urban landscape, such as bike racks at train stations.

American Bike Culture

In America, bike culture is regarded as a social movement, a sub-culture in many areas, advocating an increase in bicycle usage in the population. American bike culture is a set of art, music, and community events offered by passionate bicyclists seeking to inspire beginners, rally the faithful, and express their love of bicycling as a life choice.

Those who have made bicycling a lifestyle choice, not a mere recreational habit, often see bicycling as a movement they want to help grow to stop pollution. There are several paths people use to convince others to try biking: Practical improvements, Logic and Facts, and Bike Culture.

Practical Improvements include measures at the level of local government, such as bike lanes , improved parking facilities, and access to public transportation, as a well as products that improve the bicycling experience, such as flat-resistant tires and simple, effective safety products. These techniques help address the common objections to bicycling: “I don’t feel safe”, “my tires are flat”, “what if my bike gets stolen?”

Bike Culture contributors use their efforts to access the emotions that are at the heart of decision-making. Recognizing that bicycling for transportation represents a significant departure from a more established automobile-centered how-to-live archetype, and therefore requires a strong emotional basis, Bike Culture artists, musicians, and organizers seeks to use their offerings and events to embolden these emotions, and push people farther along in their own personal transformations. Through music, art, and shared group experiences such as rides and events, bike culture aims to hit the emotions that can bring us the point of making changes in our daily habits and lives.

Bike culture consists of:

  • Bike Music
  • Bike Film
  • Bike Rides, often noncompetitive in nature. Includes Critical Mass, Midnight Ridazz (more info below).
  • Art Bikes, often impractical for transportation purposes or fantastical, such as tall bikes, choppers, unusual multi-person human-powered vehicles, and human powered floats.
  • Printed word: Blogs, haikus, zines and magazines, stickers, spoke cards. Books include: Thomas Stevens with his narrative “Around the World on a Bicycle,” Mark Twain with his essay “Taming the Bicycle” and H. G. Wells with his novel The Wheels of Chance were early contributors to bicycle culture.
  • Spoken word: Slang, rap, poetry
  • Arts and Crafts (both handmade and mass manufactured): An example of visual art is Mona Caron’s Bike Mural.

Who contributes to Bike Culture:


Cyclists in Portland, Oregon, move by bike to cut down on car trips.

Many cities contain subcultures of bicycle enthusiasts, including racers, bicycle messengers, bicycle transportation activists, mutant bicycle fabricators, bicycle mechanics, and cyclists who share an interest in peace and justice activism or various counter-culture groups. Group activities may involve competitive cycling, fun rides, or even civil disobedience, which is how motorists may characterize the activities of Critical Mass. Some groups work to promote bicycle transportation (community bicycle program); others fix up bicycles to give to children or the homeless, or to poor people in other countries (Bikes Not Bombs).

Bicycle magazines and organizations give yearly awards to cities for being “bicycle friendly”. Cities known as such, including Amsterdam, Austin, Texas, Berlin, Boulder, Colorado, Chicago, Copenhagen, Kyoto, Ljubljana, Minneapolis, Münster, Ottawa, Paris, Philadelphia, and Portland, Oregon feature “bicycle culture” as part of their urban identity.

Midnight Ridazz is a group of bicycle enthusiasts who ride every second Friday of the month in Los Angeles California. Riding in numbers exceeding 1000 cyclists, this ride’s only political motive is to inspire more people to ride bicycles. Similar midnight rides such as the Midnight Mystery rides of Portland and Victoria, the bi-monthly Midnight Mass of Vancouver BC, and similar rides across the US and Europe have been growing in popularity.

See also

  • Car-free movement
  • Critical Mass
  • Railfan
  • Roadgeek
  • Segregated cycle facilities
  • Utility cycling

External links

The external links in this article may not follow Wikipedia’s content policies or guidelines.
Please improve this article by removing excessive or inappropriate external links.

  • Austin Bike Culture Archive
  • Bicycle culture in Edinburgh
  • Bicycle Film Festival
  • Bicycle Messengers - a short film with animated couriers
  • BikeAthens
  • The Bike Show on Resonance FM
  • Carbusters magazine
  • CrankMyChain! Cycle TV
  • Cycling for Everyone: Lessons for Vancouver from the Netherlands, Denmark, and Germany (video of lecture)
  • ElmCityCycling
  • International Cycling Video Festival
  • Lucas Brunelle Productions
  • Minneapolis Bike Love
  • Momentum Magazine
  • Mutant Bike Gangs of New York
  • Rock the Bike’s Bike Culture blog entries
  • Ruhmlos Cycling Pleasure
  • SHIFT to bikes!
  • University of Utah Bicycle Collective

Retrieved from “http://en.wikipedia.org/wiki/Bicycle_culture
Categories: Cycling | Transport culture | Sustainable transportHidden category: Wikipedia external links cleanup

Community Street Review

Sunday, November 30th, 2008

A Community Street Review is a new survey method where a Community Street Audit is combined with a numerical rating system. The methodology is the result of research commissioned by Land Transport New Zealand for improving Walkability in New Zealand. The methodology involves taking a group of community members to a location and have them review their perceptions of the walking environment. The participant resonses are entered into a database and a level of service is assinged to the area. Physical and operational variables are also collected at the time of the review and paired with the responses and level of service calculations. Once enough reviews have been completed, it is expected that walkability level of service will be derived straight from the measurement of physical and operational variables.

References

  1. ^ “levelofservice.com Homepage.” Retrieved 4/21/08

External links

  • levelofservice.com, Walkability tools research and walking level of service calculator.

Retrieved from “http://en.wikipedia.org/wiki/Community_Street_Review
Categories: Urban studies and planning terminology | Walking | Transport in New Zealand

Dynamic packaging

Sunday, November 30th, 2008

Dynamic Packaging is a method that is becoming increasingly used in package holiday bookings that enables consumers to build their own package of flights, accommodation, and a hire car instead of a pre-defined package. Dynamic packages are primarily sold online, but online travel agencies will also sell by phone owing to the strong margins and high sale price of the product.

See also

  • Thomas Cook and Son - historic originators of travel packaging in 1860s
  • Travel technology
  • Free Independent Traveler

References

  1. ^ “Travel Agents Could Lose Out in the Dynamic Packaging Battle” (HTML). First Conferences Ltd. (2005). Retrieved on 19 January 2005.
  2. ^ “Method and apparatus for the composition and sale of travel-oriented packages” (HTML). United States Patent Number 7,136,821 Inventors: Kohavi, Bar-david, et al. (2006). Retrieved on 16 November 2006.

External links

Dynamic Packaging FAQ from TravelWeekly.co.uk

www.Goquo.com - the Award Winner for 2006 for best Dynamic Packaging tools online - WTM London

www.csimedia.net Leading provider of Dynamic Packaging technology based in the UK

 This tourism-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from “http://en.wikipedia.org/wiki/Dynamic_packaging
Categories: Types of tourism | Travel and holiday companies | Travel | Tourism stubs

World Electric Vehicle Association

Saturday, November 29th, 2008

The World Electric Vehicle Association (WEVA) is an organization that promotes electric vehicles.

It is based in Palo Alto, California .

The chairman is Hisashi Ishitani.

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Member associations

It is composed by :

  • Electric Drive Transportation Association (EDTA)
  • Electric Vehicle Association of Asia Pacific (EVAAP)
  • European Association for Battery, Hybrid and Fuel Cell Electric Vehicles (AVERE)

EDTA

Electric Drive Transportation Association (EDTA) is the US branch, based in Washington, D.C.

International Electric Vehicle Symposium and Exposition (EVS)

WEVA organizes annual International Electric Vehicle Symposium and Exposition (EVS).

The EVS series began in 1969 as an academic forum for global networking and the exchange of technical information. As electric drive technologies progressed from the classrooms and laboratories into the marketplace, EVS blossomed into an event that is both academic and business oriented.

Rotating between regions of the world, each EVS event is hosted by one of the three members of WEVA .

See also

  • CalCars
  • Electric vehicle
  • Repower America

References

  1. ^ http://www.electromobil.net/k-cat.html
  2. ^ http://www.electricdrive.org
  3. ^ http://www.evaap.org/
  4. ^ http://www.avere.org/
  5. ^ http://www.x-cd.com/EVS23CD/organizers.html
  6. ^ http://www.x-cd.com/EVS23CD/organizers.html

External links

  • WEVA Journal
  • EDTA Conference and Exposition

 This article about an automotive organization (not manufacturer) is a stub. You can help Wikipedia by expanding it.


 This article about electric power is a stub. You can help Wikipedia by expanding it.


 This article about renewable energy is a stub. You can help Wikipedia by expanding it.


This article about transport is a stub. You can help Wikipedia by expanding it.

Retrieved from “http://en.wikipedia.org/wiki/World_Electric_Vehicle_Association
Categories: Electrification | Climate change organizations | Non-profit organizations based in California | Palo Alto, California | PHEV organizations | Plug-in hybrid vehicles | Electric vehicles | Environmental organizations based in California | DIY open source | Automotive organization stubs | Electric power stubs | Renewable energy stubs | Transportation stubs

Metrocable

Saturday, November 29th, 2008

Metrocable

Info

Type
Aerial tramway

Status
Operational

Locale
Medellín, Colombia

Operation

Opened
2006

Operator(s)
Metro de Medellín

Character
Elevated

Technical

Electrification
Electric motor powering cable bullwheel

Operating speed
10 miles per hour (16 km/h)

Highest elevation
399 m (1,310 ft)

Metrocable is an aerial tramway system implemented by the local government of Medellín, Colombia whose main function is to be a complementary service of Medellín’s Metro. It is intended to reach the least developed suburban areas.

Medellín is a city located in the Aburra Valley and it is therefore surrounded by hills. Many of those hills are home of underdeveloped towns that because of their location have not been reached by Medellín’s biggest mass transportation system Metro. Many of those towns are in fact located in very steep grounds to the extent that not even a regular bus system could be either useful or commercially profitable.

The Metrocable system is a branch of Medellín’s metro and it is managed by the company Metro of Medellín. The system consists of cable cars connected to a fixed cable through means of a rolling wheel (called truck). The wheels roll on the haulage rope allowing the cabins to move at an average speed of 10 miles per hour (16 km/h).

At the present time two lines have been built, the line J and line K. These lines currently serve the districts of Andalucia (K), Popular (K), Santo Domingo Savio (K), Juan XXIII (J), Vallejuelos (J) and La Aurora (J). The system has been received with enthusiasm by the locals.

A new “Metro Cable” line (line S) is expected to be inaugurated in 2009. A transference station will be built at Santo Domingo Savio Station. This line will continue further uphill and will reach El Tambo in Arví park near Guarne. The reason for constructing this line is because the city wants to promote tourism in the rural area near Lake Guarne. It will take 14 minutes to ascend to El Tambo and there won’t be any intermediate stations.

Aerial tramways are not often used as mass transportation system, although they can be used as such. A good example of this system are the many cable cars in skiing regions, Roosevelt Island Tramway in New York or the Cable Car to the world’s largest statue of Buddha on Lantau Island, Hong Kong.

One of the disadvantages of trams are the risk inherent to power outages. In case of a hazard or an emergency it is not possible to exit the cabins. Medellín metro is approaching this problem by providing a communication system in every tram should an emergency occur.

See also

  • Metro de Medellín
  • Transmilenio
  • Megabús

Retrieved from “http://en.wikipedia.org/wiki/Metrocable
Categories: Aerial lifts | Aerial tramways | Scottish inventions | Vertical transportation devices

List of OECD countries by road network size

Saturday, November 29th, 2008

The Organisation for Economic Co-operation and Development (OECD) countries below are listed by the size of their motorway network and public road network. Shown are the total network length, per capita length, and density.

Motorway network

Country
Total network length of
all motorways (km)
Length of motorways
per capita (mm)
Motorway density
(m of motorway per square km)

 Austria
1678
202.61
20.01

 Belgium
1763
167.73
54.17

 Canada
16900
534.59
1.69

 Czech Republic
962
92.47
12.20

 Denmark
1340
236.04
31.09

 Finland
693
131.85
2.05

 France
10843
176.2
19.67

 Germany
12363
149.97
34.63

 Great Britain
3555
60.41
15.46

 Hungary
1013
56.94
6.18

 Iceland
0
0
0

 Ireland
125
29.48
1.76

 Italy
6487
112.06
21.53

 Japan
7383
57.79
19.54

 South Korea
3117
64.27
31.29

 Luxembourg
147
319.57
56.84

 Netherlands
2274
139.01
54.76

 New Zealand
171
41.3
0.64

 Norway
194
41.81
0.6

 Poland
761
17.36
2.05

 Portugal
2647
249.32
28.65

 Slovakia
580
288.56
28.61

 Sweden
1740
192.31
3.87

 Switzerland
1361
182.46
32.97

 USA
75008
253.05
7.79

Total road network

Country
Total network length of
all public roads (km)
Length of public roads
per capita (m)
Road density
(m of road per square km)

 Australia
810,624
39.16
105

 Austria
106,962
12.91
1275

 Belgium
152,256
14.49
4678

 Canada
1,408,800
44.56
141

 Czech Republic
55,510
5.42
704

 Denmark
72,411
12.76
1680

 Finland
79,132
15.06
234

 France
1,000,960
16.27
1816

 Germany
644,480
7.82
1805

 United Kingdom
398,350
6.77
1733

 Hungary
180,994
17.92
1945

 Ireland
95,752
22.58
1352

 Israel
17,686
2.51
N/A

 Japan
1,192,972
9.34
3157

 South Korea
102,293
2.11
1027

 Luxembourg
2,894
6.29
1119

 Netherlands
117,430
7.18
2828

 New Zealand
93,460
22.57
347

 Norway
92,863
20.01
287

 Poland
382,615
10.04
1186

 Slovakia
20,236
10.07
998

 Spain
666,204
15.15
1320

 Sweden
215,000
23.76
478

 USA
6,430,351
21.69
668

Sources

  1. ^ a b c d e f “Selected year 2006 road traffic data”. OECD International Traffic Safety Data and Analysis Group (IRTAD).
  2. ^ Roads and motorways in the Czech Republic 2007

v • d • e

Lists of countries with rankings

Geography
Agriculture

Area: forest · water · Border · Coastline · EEZ · Extreme points: highest · lowest · northernmost · southernmost · Freshwater: withdrawal · irrigation · Agricultural output: fish · milk · fruit · banana · apple · tomato · orange · citrus · tobacco · coffee · cacao · tea · wine · sugarcane · maize · rice · wheat · triticale · rye · barley · oat · buckwheat · millet · sorghum · soybean · sunflower · potato · sugar beet

Demographics
Society

Population: density · growth · HDI · Life expectancy · Sex ratio · Fertility · Infant mortality · Birth rate · Death rate · Undernourishment · Suicides · Homicides · Gun ownership · Firearm-related deaths · HIV/AIDS · Literacy · Student performance · IQ · English speakers · Labour force · Employment · Unemployment · Income equality · Social welfare · Poverty · Charity · Immigrants · Religion · Cannabis use: annual · lifetime · Cocaine · Opiates · Death penalty · Prisoners · School leaving age · Legal drinking age · Consumption of: tea · coffee · tobacco · beer · wine · alcohol · Prosperity · Quality-of-life · Satisfaction with Life · Happiness · EPI · Ecology · Biosphere reserves · World Heritage Sites · Tourism: visits · competitiveness · International reputation

GDP
Finance

Nominal: per capita · past · future · PPP: per capita · per hour · past · future · future per capita · GNI per capita · Growth: per capita · industrial · Sector composition · Current account: as % of GDP · Forex reserves · Received FDI · External debt · Public debt · Imports · Exports: per capita · Tax revenue · Exchange rates (with USD)

Energy
Industry

Energy: consumption · intensity · Electricity: consumption · production · Natural gas: reserves · consumption · production · imports · exports · Oil: reserves · consumption · production · imports · exports · Coal: reserves · production · Uranium: reserves · production · Nuclear power · Renewable energy: hydroelectricity · wind power · Minerals production: bentonite · feldspar · fluorite · mica · asbestos · salt · diamond · iodine · Metallurgy: iron · steel · bauxite · Al2O3 · aluminium · bismuth · antimony · cobalt · tungsten · strontium · zirconium · niobium · cadmium · molybdenum · manganese · nickel · tin · copper · palladium · platinum · silver · gold · zinc · mercury · Automobile industry · Cement production · Shipbuilding · Emissions: CO2 · CO2 per capita · GDP per emissions

Transport
Communication

Airports · Railways: usage · Rapid transit · Roadways: vehicles · fatalities · Waterways · Merchant marine · Pipelines · Telephone lines · TV broadcast stations · TV sets · Mobile phones · Internet: broadband · E-readiness

Politics
Military

Freedom: press · economic · Privacy · Corruption · Bribes · Property rights · Ease of business · Competitiveness · Globalization · Democracy · Stability · Armed forces · Active troops: per capita · Conscription · Defense budget · Aircraft carriers · Nuclear weapons · Arms exports · UN peacekeepers · Global Peace

Sports
Culture

Olympics: medals · hosts · FIFA World Cup: winners · hosts · rankings · Beach soccer · Futsal · Curling: men · women · Ice hockey: men · women · rankings · Field hockey: men · women · Bandy · Cricket: Test · ODI · Basketball: men · women · Handball: men · women · Volleyball · Davis Cup · Fed Cup · Badminton: men · women · Athletics · Figure skating · Bobsleigh · Luge: natural track  · Nordic skiing · Alpine skiing · Chess · Academy Awards

Retrieved from “http://en.wikipedia.org/wiki/List_of_OECD_countries_by_road_network_size
Categories: Lists of countries | Road transport

Aerial application

Saturday, November 29th, 2008


Polish M-18 Dromader waterbomber used in Western Australia.

Aerial application, commonly called crop dusting, involves spraying crops with fertilizers, pesticides, and fungicides from an agricultural aircraft. The specific spreading of fertilizer is also known as aerial topdressing.

Agricultural aircraft are often purpose-built, though many have been converted from existing airframes. Helicopters are sometimes used, and some aircraft serve double duty as water bombers in areas prone to wildfires.

Contents

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History

This section does not cite any references or sources.
Please help improve this section by adding citations to reliable sources. Unverifiable material may be challenged and removed. (March 2008)

Aerial Seed Sowing 1906

The first known aerial application of agricultural materials was by John Chaytor, who in 1906 spread seed over a swamped valley floor in Wairoa, New Zealand, using a hot air balloon with mobile tethers. Aerial sowing of seed has continued on a small scale.

Crop dusting 1921


A crop duster applies a low-insecticide bait on a soybean field.

The first known use of a heavier-than-air machine occurred on 3 August 1921 when as the result of advocacy by Dr B.R. Coad, a United States Army Air Service Curtiss JN4 Jenny piloted by John MacReady was used to spread lead arsenate to kill catalpa sphinx caterpillars near Troy, Ohio in the United States. The first commercial operations were attempted in 1924, by Continental Dusters which subsequently became part of Delta Air Lines. Use of insecticide and fungicide for crop dusting slowly spread in the Americas and to a lesser extent other nations in the 1930s and 1940s.


NZ Ministry of Works Miles Whitney Straight ZK-AFH, the first aircraft to used for topdressing

Top dressing 1939-1946

Aerial topdressing, the spread of fertilisers such as superphosphate, was developed in New Zealand in the 1940s by members of the Ministry of Public Works and RNZAF, led by Alan Pritchard and Doug Campbell - unofficial experiments by individuals within the government led to funded research. Initially fertilizer and seed were dropped together (1939), using a window mounted chute on a Miles Whitney Straight, but by the end of the 1940s different mixtures of fertilizer were being distributed from hoppers installed in war surplus Grumman Avengers and C-47 Dakotas, as well as some privately operated de Havilland Tiger Moths in New Zealand, and the practise was being adopted experimentally in Australia and the United Kingdom. Crop dusting poisons enjoyed a boom after World War II until the environmental impact of widespread use became clear, particularly after the publishing of Rachel Carson’s Silent Spring.


A helicopter fills its bucket while fighting a fire near Naples, Italy.

Water bombing 1952

Aerial firefighting, or water bombing, was tested experimentally by Art Seller’s Skyways air services in Canada in 1952 (dropping a mix of water, fertilizer and seed), and established in California in the mid 1950s.

Night aerial application 1973-present

Crop dusting at night is mostly liquid spray and is conducted in the Southwest US deserts. The rising cost of pesticides and increasing immunity built up by continuous spraying reduced the effectiveness of spraying in daytime. In high temperature areas, the insects would travel down in plants in daytime and return to the top at night. The aircraft (both fixed wing and helicopter) were equipped with lights, usually three sets: work lights were high power and aimed or adjustable from the cockpit; wire lights were angled down for taxi and wire or obstruction illumination; and turn lights which only were turned on in the direction of the turn to allow safe operation on moonless nights where angle of entry or exit needed to be illuminated. These aircraft were equipped with pumps, booms, and nozzles for spray application. Some aircraft were equipped with an elongated metal wing called a spreader, with channels built in to direct the flow of dust such as sulplhur, used on melons as a pesticide and soil amendment. Very little pesticide dust was used day or night in comparison to spray because of the difficulty in drift control. Workers on the ground called “flaggers” would use flashlights aimed at the aircraft to mark the swaths on the ground, later GPS units replaced the flaggers because of new laws regarding using human flaggers on some pesticides.

According to the US Bureau of Labor Statistics, in 2005 US cropduster pilots earned an average annual wage of $63,210.

Environmental & Human Rights Issues

As with pesticide application in general, crop dusting is associated with a number of environmental concerns, including spray drift, soil contamination, water pollution, and occupational disease, often in the form of increased risk of cancer to those involved. Another concern is that the aerial application of pesticides can lead to adaptation by insects, and is thus not a sustainable practice even aside from environmental and health issues. In the U.S. in 1970, lawsuits and court cases involving spraying of pesticides, especially aerial application in commercial agriculture were a growing area in law, combining areas such as negligence, products liability, strict liability, statutory regulation and commercial law. Environmental and human rights issues associated with crop dusting is greatest in developing countries, where government oversight is weaker or absent, few safety practices are used, and chemicals are used that are banned in most developed countries.

A study found that most of the crops grown in Texas were treated with chemicals that show evidence of possible carcinogenicity, and pointed to aerial application of pesticides as a potential cause of cancer in children.

References

  1. ^ William T. Birmingham; Jon L. Kyl, “Legal and Practical Aspects of Pesticide Spraying Cases”, Defense Counsel Journal, (1970)
  2. ^ K. Elgethun; S. Horel; S. Carozza “Pesticide Exposure Assessment for a Population-Based Case-Control Study of Childhood Cancers”, Epidemiology:Vol. 17, No. 6, Suppl., (Nov. 2006)
  3. ^ H. Luchtrath, “The consequences of chronic arsenic poisoning among Mosalle wine growers: Pathoanatomical investigations of post-mortem examinations performed between 1960 and 1977″, Journal of Cancer Research and Clinical Oncology, No. 105, pp. 173-182 (1983)
  4. ^ R. McConnell; A.F. Pacheco Antón; R. Magnotti, “Crop duster aviation mechanics: high risk for pesticide poisoning”, American Journal of Public Health, Vol. 80, No. 10, pp. 1236-1239, (1990)
  5. ^ Rob McConnella; Feliciano Pachecob; Kåre Wahlbergc; Willy Kleinb; Omar Malespinb; Ralph Magnottid; Malin Åkerblome; Douglas Murray, “Subclinical Health Effects of Environmental Pesticide Contamination in a Developing Country: Cholinesterase Depression in Children”, Environmental Research, Vol. 81, No. 2, pp.87-91. (Aug. 1999)

See also

  • Pesticide application
  • Sprayer
  • Ultra-low volume spray application

Retrieved from “http://en.wikipedia.org/wiki/Aerial_application
Categories: Agriculture | Aviation | Firefighting equipmentHidden category: Articles needing additional references from March 2008

Cut and fill

Saturday, November 29th, 2008

Cut and Fill in earthmoving is the process of constructing a railway, road or canal whereby the amount of material from cuts roughly matches the amount of fill needed to make nearby embankments, so minimizing the amount of construction labor. This technique is widely practiced in mining applications.

Contents

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Cut section

Cut slopes are rarely created greater than a slope of two to one (horizontal to vertical dimensions)..

Fill section

Fill sections manifest as elevated sections of a roadway or trackbed. Environmental effects of fill sections are typically favorable with respect to air pollution dispersal, but in the matter of sound propagation, exposure of nearby residents is generally increased, since sound walls and other forms of sound path blockage are less effective in this geometry.

History

This practice was first performed on new dwellings for returned soldiers in Ireland at the end of WWII. It was developed by Irish railway engineer, Lachlan J. Boland who saw the benefits of introducing railway practices to residential construction. Previously the practice of Cut and Fill was widely utilized to construct tracks along rolling terrain across the British Isles.

Software

Software such as Quantm can be used to trial millions of likely routes, all the time calculating the balance of cut and fill.

References

  1. ^ Encyclopedia britannica: Cut and fill mining
  2. ^ Roadway design theory and concepts
  3. ^ C.Michael Hogan, Analysis of highway noise, Journal of Water, Air, & Soil Pollution, Volume 2, Number 3, Biomedical and Life Sciences and Earth and Environmental Science Issue, Pages 387-392, September, 1973, Springer Verlag, Netherlands ISSN 0049-6979

Retrieved from “http://en.wikipedia.org/wiki/Cut_and_fill
Categories: Rail transport | Road transport