road congestion

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road congestion

a situation where the volume of traffic using certain roads is high enough to slow traffic flows, causing delays to all travellers journeying on those roads. Road congestion has increased in many countries as a result of greater car ownership and use, and is particularly prevalent in cities and urban areas, especially in the ‘rush hours’ at the start and end of working days as commuters travel to and from work. The main costs of road congestion are the time delays experienced by road travellers, which, in the case of lorry and van drivers, salespeople, etc., is borne by their employers. In addition to lost time, slow-moving vehicles burn more fuel to complete their journeys and cause more exhaust POLLUTION.

Congestion is an example of MARKET FAILURE, with each extra vehicle using a congested road slowing traffic for all vehicles, so imposing a social cost of EXTERNALITY on other road users in the form of delays. To correct for this externality, governments have several options. First, they could build more roads or widen or improve existing roads, at public expense, to increase road supply. However, this may generate further traffic as faster journeys encourage more consumers to buy cars or to live farther from their places of work. Second, governments can build roads and bridges financed by tolls paid by motorists. Third, government can subsidize public transport as substitutes for cars, such as buses, trains and trams, to encourage their greater use by travellers. Fourth, governments can restrict car access by designating bus-only lanes and introducing parking charges. Finally, governments can use road-pricing systems to charge vehicles for travelling on designated roads at specified times in order to discourage car use. For example, in 2003 London introduced a congestion charge of £5 per day for vehicles entering the central London charging zone, which has initially reduced traffic by around 20%. Since 1998 Singapore has had a more sophisticated electronic road-pricing scheme, which charges different rates for travel in different areas of Singapore at different times.

References in periodicals archive ?
Phuentsholing Thrompon Uttar Kumar Rai said traffic congestion is a chronic issue which cannot be solved overnight.
A hand out of the provincial government stated that Secretary Information Qaiser Alam chaired the meeting where plans were finalised with officials of the police department and Peshawar Development Authority (PDA) to resolve the worst traffic congestions of major thoroughfare in the city after the start construction on BRT.
Each one of us can help prevent traffic congestion.
18:20 #TrafficUpdate : Traffic Congestion has been reported at all entrances to #Dubai Mall.
Other expected effects of this project include reducing the time and financial burden (additional fares on transit buses during traffic congestion) on area residents commuting to the central area, and reducing the volume of emission gases and noise as a result of mitigated traffic congestion.
Middlesbrough Council, in what is a cross-border issue, should not be excluded from criticism in this unexplained change of policy which will deprive South-east Middlesbrough of the opportunity to rid itself of well-established severe traffic congestion.
Equally, the implementation of fines has been shown to only slightly ease the situation, as motorists continued to complain about the traffic congestion caused by trucks being pulled over to the side of the road, further hampering traffic flow.
by Times News Service Due to the traffic congestion, the driver lost control of his vehicle and jumped outside the road.
That's the message Manila International Airport Authority (MIAA) General Manager Jose Angel Honrado has for airlines that give air traffic congestion as an excuse for delayed flights.
A Quezon City councilor has initiated moves to ban the operation of provincial bus terminals in the city in a bid to address worsening traffic congestion along the city's major thoroughfares,
Probe-generated traffic information provisioning service contributes to solving the social problem of traffic congestion on local roads, promoting the use of toll roads
The traffic guidance system operates in 4 phases (1) data collection & representation (2) traffic congestion prediction (3) vehicle selection for re-routing (4) alternative route assignment for each such vehicle & pushing the guidance to the vehicles.

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