On-ramp merging areas are deemed to be typical bottlenecks for freeway networks due the intensive disturbances induced by frequent merging, weaving, and lane-changing behaviors. The Connected Autonomous Vehicles (CAVs), benefited from their capabilities of real-time communication precise motion control, hold an opportunity promote ramp operation through enhanced cooperation. existing CAV cooper...

Urban congestion is a serious and worsening national problem, one which is receiving increasing attention from transportation engineers, planners, and researchers, as well as other local, state, and national officials. Urban freeways, which carry nearly 30’% of all traffic in urban areas, are particularly affected by growing urban congestion. In 1983, about 557. of urban freeway travel during t...

T he 1985 Highway Capacity Manual (HCM) introduces new concepts of capacity and level of sarvice that are, in some cases, radically different from those used in previous editions of the HCM.’ A previous article has presented and discussed these basic concepts and their implication on interpreting capacity analysis results.’ This article focuses on the three primary examples of markedly differen...

Given two sets of points in the plane, we are interested in locating a highway h such that an objective function on the city distance between points of the two sets is minimized (where the city distance is measured with speed v > 1 on a highway and 1 in the underlying metric elsewhere). Extending the results of Ahn et al. ([7]), we consider the option that there are already some built highways....

15. Supplementary Notes Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. 16. Abstract Non-recurring congestion accounts for a significant portion of freeway delay experienced by motorists in both rural and urban areas. Because access to these facilities is controlled by onramps, these can play a major role in minimizing the imp...

Rural highway is the foundation of highway network construction and the important bridge for balancing urban and rural harmonious development. Rural highway has the basic, pilot and driving function to new rural construction. This paper took a sampling survey on 173 villages in Hebei Province. According to the 687 questionnaires, this paper set up an evaluation system of the rural highway const...

15. Supplementary Notes Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. 16. Abstract Non-recurring congestion accounts for a significant portion of freeway delay experienced by motorists in both rural and urban areas. Because access to these facilities is controlled by onramps, these can play a major role in minimizing the imp...

ENGLISH) This study presents a surrogate approach for safety analysis of freeway facilities using semiautomated trajectory collection and behavioural analysis from surrogate measures of safety (in particular time to collision). This methodology is proposed as a potential alternative to the classical approach based on historical accident data, particularly suited for evaluating the microscopic s...