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The triangular curve consists of two vectors. The first vector is the freeflow side of the curve. This vector is created by placing the freeflow velocity vector of a roadway at the origin of the flow-density graph. The second vector is the congested branch, which is created by placing the vector of the shock wave speed at zero flow and jam density.
An alternative form of electro-magnetic coupling is called a linear motor, first developed by Professor Eric Laithwaite at Imperial College London in the 1960s. Instead of supplying electric motors with power directly or charging on-board batteries, the RPEV is fitted with magnets which are impelled horizontally in the same way as the rotor on ...
Roadway Express, Inc., 481 U.S. 252, that due process requires that employers receive prereinstatement notice of the employee's allegations, notice of the substance of the relevant supporting evidence, an opportunity to submit a written response, and an opportunity to meet with the investigator and present statements from rebuttal witnesses ...
In transportation engineering, traffic flow is the study of interactions between travellers (including pedestrians, cyclists, drivers, and their vehicles) and infrastructure (including highways, signage, and traffic control devices), with the aim of understanding and developing an optimal transport network with efficient movement of traffic and minimal traffic congestion problems.
On the right are two springs joined in series by a short rope. When the short rope connecting B and C is removed (left), the weight hangs higher. A model with springs and ropes can show that a hung weight can rise in height despite a taut rope in the hanging system being cut, and follows from the same mathematical structure as the original ...
Roadway Express, Inc. was an American less than truckload (LTL) trucking company. Roadway Express and its holding company, Roadway Corporation, were acquired by logistics holding company Yellow Corporation in 2003, and the parent companies were merged to form Yellow Roadway Corporation, later renamed YRC Worldwide.
Traffic collision reconstruction is the process of investigating, analyzing, and drawing conclusions about the causes and events during a vehicle collision. . Reconstructionists conduct collision analysis and reconstruction to identify the cause of a collision and contributing factors including the role of the driver(s), vehicle(s), roadway and gen
Washboarding effect on a road. Washboarding or corrugation [1] is the formation of periodic, transverse ripples in the surface of gravel and dirt roads.Washboarding occurs in dry, granular road material [2] with repeated traffic, traveling at speeds above 8.0 kilometres per hour (5 mph). [3]