An Empirical and Theoretical Study of Freeway Weave Bottlenecks
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چکیده
منابع مشابه
A Stochastic Model for Reliability Analysis in Freeway Networks
The capacity of a freeway is traditionally considered as a constant value in traffic engineering. In reality, capacities vary according to external conditions such as dry or wet road surfaces, daylight or darkness, and to the prevailing travel purpose of drivers on the freeway. Even under constant external conditions different capacities can be observed on freeways because of variations in driv...
متن کاملRamp Metering and Freeway Bottleneck Capacity
This study aims to determine whether ramp meters increase the capacity of active freeway bottlenecks. The traffic flow characteristics at twenty-seven active bottlenecks in the Twin Cities have been studied for seven weeks without ramp metering and seven weeks with ramp metering. A methodology for systematically identifying active freeway bottlenecks in a metropolitan area is proposed, which re...
متن کاملRamp Metering and the Capacity of Active Freeway Bottlenecks
The objective of this study is to determine whether ramp meters increase the capacity of active freeway bottlenecks, and if they do, how. The traffic flow characteristics at twenty-seven active bottlenecks in the Twin Cities have been studied for seven weeks without ramp metering and seven weeks with ramp metering. A series of hypotheses regarding the relationships between ramp metering and the...
متن کاملSome Properties of Flows at Freeway Bottlenecks
The capacity of a freeway segment should be measured only when it is an active bottleneck. The properties of flows at active freeway bottlenecks have a bearing on both the definition of capacity and the procedure of capacity analysis. Past studies have examined the flow features at bottlenecks on several freeways in Toronto, Canada, and San Diego, California. This study examined 27 active bottl...
متن کاملCENTER FOR TRANSPORTATION STUDIES RESEARCH PROJECT PROPOSAL Research Project Title: DYNAMIC ESTIMATION OF FREEWAY WEAVING CAPACITY FOR TRAFFIC MANAGEMENT AND OPERATIONS, PHASE II Principal Investigator Information
Understanding the behavior of weaving flows and estimating the effects of time-variant traffic conditions on the capacity of weaving areas is of critical importance in developing effective operational strategies, which can achieve the maximum utilization of existing capacity for a given freeway system. The previous phase of this research identified and classified the major weaving areas in the ...
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تاریخ انتشار 2008