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Traffic congestion is a condition in transport that is characterized by slower speeds, longer trip times, and increased vehicular queueing. Traffic congestion on urban road networks has increased substantially since the 1950s, resulting in many of the roads becoming obsolete. [2]
The reverse commuter travels in the opposite direction of the regular daily traffic flow during rush hour, and therefore encounters less road traffic congestion faced by regular commuters. An advantage of this system is the usage of otherwise empty transit capacity: no additional trains or travel lanes are necessary to accommodate people riding ...
The Downs–Thomson paradox (named after Anthony Downs and John Michael Thomson), also known as the Pigou–Knight–Downs paradox (after Arthur Cecil Pigou and Frank Knight), states that the equilibrium speed of car traffic on a road network is determined by the average door-to-door speed of equivalent journeys taken by public transport or the next best alternative.
Here is a more complete quote from pp.132-133 of Downs' Still Stuck in Traffic: Transit Capacity Could Reduce Intense Traffic Congestion in One Situation In theory, there is one exception to the conclusion that expanding transit capacity cannot reduce existing intensive peak-hour traffic congestion. It was pointed out by Martin J. H. Mogridge.
This is an accepted version of this page This is the latest accepted revision, reviewed on 20 December 2024. Directionality of traffic flow by jurisdiction Countries by direction of road traffic, c. 2020 ⇅ Left-hand traffic ⇵ Right-hand traffic No data Left-hand traffic (LHT) and right-hand traffic (RHT) are the practices, in bidirectional traffic, of keeping to the left side and to the ...
A traffic bottleneck is a localized disruption of vehicular traffic on a street, road, or highway. As opposed to a traffic jam, a bottleneck is a result of a specific physical condition, often the design of the road, badly timed traffic lights, or sharp curves. They can also be caused by temporary situations, such as vehicular accidents.
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One-way traffic (or uni-directional traffic) is traffic that moves in a single direction. A one-way street is a street either facilitating only one-way traffic, or designed to direct vehicles to move in one direction. One-way streets typically result in higher traffic flow as drivers may avoid encountering oncoming traffic or turns through ...