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The DMRB is used to design trunk roads such as the A20 in the UK. The Design Manual for Roads and Bridges (DMRB) is a series of 15 volumes that provide standards, advice notes and other documents relating to the design, assessment and operation of trunk roads, including motorways in the United Kingdom, and, with some amendments, the Republic of Ireland.
Active traffic management (also managed lanes, smart lanes, managed/smart motorways) is a method of increasing peak capacity and smoothing traffic flows on busy major highways. Techniques include variable speed limits , hard-shoulder running and ramp-metering controlled by overhead variable message signs .
Some road transportation is done on regular routes or for only one consignee per run (full truckload), while others transport goods from many different loading stations/shippers to various consignees per run (less-than-truckload). On some long runs only cargo for one leg of the route (to) is known when the cargo is loaded.
In this context, transportation systems management techniques may include changes to traffic signals, such as coordinating them or introducing ramp metering, or minor changes to road geometry, such as straightening corners or lengthening merge lanes. These low-cost interventions can be very effective in reducing congestion under some circumstances.
The impact of this technology-led approach has been very limited in the transport sector. TDM has the potential to move the transport sector from a position of weak to strong sustainability by combining behavior-change with technology improvements. In this context transport demand management is understood as a much broader concept.
Road systems: Roads and highways : Highways in Australia • UK motorways • Interstate Highways in the U.S. • U.S. Numbered Highways • State highways in the U.S. Bridges : UK • US • Longest suspension bridge spans
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Transport (in British English) or transportation (in American English) is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land (rail and road), water, cable, pipelines, and space. The field can be divided into infrastructure, vehicles, and operations.