hematuria
发表于 2025-3-26 22:24:28
Flow, Speed, Density, and Their Relationships. When describing and assessing traffic operations, we are often concerned with the movement of a group of vehicles, or the traffic stream as a whole, rather than the movement of each vehicle. In those cases, it is more convenient to describe traffic operations in terms of macroscopic measures of tr
osteopath
发表于 2025-3-27 04:29:22
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obnoxious
发表于 2025-3-27 07:45:48
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有法律效应
发表于 2025-3-27 11:55:30
Mathematical and Empirical Modelsic operational conditions at some time in the future under various sets of design, traffic, and control characteristics. Traffic engineers and designers can make decisions regarding facility modifications or traffic management improvements based on the expected impact of those improvements in the tr
cogent
发表于 2025-3-27 13:59:09
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初次登台
发表于 2025-3-27 17:51:18
Freewaysblic access rights from properties along the freeway; access to freeway facilities is allowed only through selected public roads, typically on- and off-ramps . Thus, freeways typically operate at higher speeds and higher capacities than urban arterial streets or local roadways.
Gesture
发表于 2025-3-28 01:05:21
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DEVIL
发表于 2025-3-28 05:55:43
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Lignans
发表于 2025-3-28 07:57:11
Two-Lane Highwaystream. According to the US Federal Highway Administration , two-lane highway facilities represent about 97 % of the total highway system and for more than 65 % of the total nonurban vehicular travel in the USA. Hence, two-lane highways provide most of the primary interurban highway network as wel
不自然
发表于 2025-3-28 14:11:10
Textbook 20141st editiontransportation system. It provides the fundamental principles of traffic flow theory as well as applications of those principles for evaluating specific types of facilities (freeways, intersections, etc.). Newer concepts of Intelligent transportation systems (ITS) and their potential impact on traff