نتایج جستجو برای: intelligent vehicle highway systems
تعداد نتایج: 1329198 فیلتر نتایج به سال:
Direct Yaw moment Control systems (DYC) can maintain the vehicle in the driver’s desired path by distributing the asymmetric longitudinal forces and the generation of the Control Yaw Moment (CYM). In order to achieve the superior control performance, intelligent usage of lateral forces is also required. The lateral wheel forces have an indirect effect on the CYM and based upon their directio...
This report responds to your request that we examine the potential of Intelligent Vehicle and Highway Systems (IVHS) technologies. Our study encompassed a synthesis of major IVHS research, a review of federally sponsored IVHS field tests, and an analysis of potential barriers to a domestic IVHS program. Cur purpose in providing this review is to assist the Subcommittee as it considers policies ...
• The fifth objective of the AASHO Road Test was as follows: "To develop instrumentation, test procedures, data, graphs and formulas which will reflect the capabilities of the various test sections; and which will be helpful in future highway design in the evaluation of the loadcarrying capabilities of existing highways and determining the most promising areas of further highway research." It w...
We calculate bounds on per-lane Automated Highway System (AHS) capacity as a function of vehicle capabilities and control system information structure. We assume that the AHS lane is dedicated for use by fully automated vehicles. Capacity is constrained by the minimum inter-vehicle separation necessary for safe operation. A methodology for deriving the safe minimum inter-vehicle separation for ...
vehicle occupants comprise a considerable proportion of traffic crash victims in iran. this paper has focused on vehicleoccupants’ injury severity and employed the classification and regression tree (cart) technique in order toidentify the most important variables affecting the injury severity of these road users in crashes occurred on rural freewaysand multilane highways in iran over a three y...
W ith the advent of the automobile as a mode of transportation late in the nineteenth century, a new phenomenon, the motor vehicle acci dent, appeared on the American scene. While the motor vehicle was in its early stages of development, the problem was not serious. How ever, as the volume of cars on the highways increased, the number of accidents increased also; the problem began to assume g...
Traffic flow control in automated highway systems (AHS) is addressed. A link layer controller for a hierarchical AHS architecture is presented. The controller proposed in this paper stabilizes the vehicular density and flow around predetermined profiles in a stretch of highway using speed and lane changes as control signals. Multiple lane highways in which vehicles have different destinations a...
In this paper, we aim to identify the different factors that influence injury severity of highway vehicle occupants, in particular drivers, involved in a vehicle-train collision at highway-railway grade crossings. The commonly used approach to modeling vehicle occupant injury severity is the traditional ordered response model that assumes the effect of various exogenous factors on injury severi...
Link layer controllers for the AVHS architecture proposed in PATH are derived using vehicle conservation flow models. Control laws are developed for three highway topologies: a single lane highway, a highway with multiple discrete lanes and a highway with an arbitrary 2 dimensional flow pattern. The control laws obtained for each of the topologies is distributed and is very suited for implement...
in recent years due to improvements of technology within automobile industry, design process of advanced driver assistance systems for collision avoidance and traffic management has been investigated in both academics and industrial levels. detection of traffic signs is an effective method to reach the mentioned aims. in this paper a new intelligent driver assistance system based on traffic sig...
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