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A wide moving jam is a moving traffic jam, which exhibits the characteristic jam feature [J] to propagate through any bottlenecks while maintaining the mean velocity of the downstream jam front denoted by . Kerner's jam feature [J] can be explained as follows.
Level of service (LOS) is a qualitative measure used to relate the quality of motor vehicle traffic service. LOS is used to analyze roadways and intersections by categorizing traffic flow and assigning quality levels of traffic based on performance measure like vehicle speed, density, congestion, etc.
In contrast, the outflow of a wide moving jam determines a condition for the existence of the wide moving jam, i.e., the traffic phase J while the jam propagates in free flow: Indeed, if the jam propagates through free-flow (i.e., both upstream and downstream of the jam free flows occur), then a wide moving jam can persist, only when the jam ...
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As demand approaches the capacity of a road (or of the intersections along the road), extreme traffic congestion sets in. When vehicles are fully stopped for periods of time, this is known as a traffic jam [3] [4] or (informally) a traffic snarl-up [5] [6] or a tailback. [7] Drivers can become frustrated and engage in road rage. Drivers and ...
Automated lane keeping systems (ALKS), also described as traffic jam chauffeurs, [1] is an autonomous driving system that doesn't require driver supervision on motorways. ALKS is an international standard set out in UN-ECE regulation 157 and amounts to Level 3 vehicle automation. [ 2 ]
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The China National Highway 110 traffic jam was a recurring [1] traffic jam that began to form on 14 August 2010, mostly on China National Highway 110 (G110) and the Beijing–Tibet expressway (G6), in Hebei and Inner Mongolia. [2] [3] The traffic jam slowed thousands of vehicles for more than 100 kilometers (60 mi) and lasted for 12 days.