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RISIntegrating Left-Turn Lane Geometric Design with Signal Timing
Publisher: American Society of Civil Engineers
Abstract: The available design guidelines indicate a lack of proper methodologies for determining the length of left-turn lanes at signalized intersections. This is largely attributable to the alternating nature of stopped and ...
Effect of Red-Light Cameras on Capacity of Signalized Intersections
Publisher: American Society of Civil Engineers
Abstract: Red light running (RLR) is one of the most common violations drivers commit at signalized intersections. To avoid RLR violations, some drivers may decide to stop abruptly, even though they had the opportunity to cross the ...
Effect of Red-Light Cameras on Capacity of Signalized Intersections
Publisher: American Society of Civil Engineers
Abstract: Red light running (RLR) is one of the most common violations drivers commit at signalized intersections. To avoid RLR violations, some drivers may decide to stop abruptly, even though they had the opportunity to cross the ...
Methodology to Evaluate the Effects of Access Control near Freeway Interchange Areas
Publisher: American Society of Civil Engineers
Abstract: Access connections and signalized intersections within the functional area of an interchange can adversely impact safety and operations at the interchange crossroad and on the freeway, and can cause the interchange to fail ...
Improve Sight Distance at Signalized Ramp Terminals of Partial-Cloverleaf Interchanges to Deter Wrong-Way Entries
Publisher: American Society of Civil Engineers
Abstract: Providing drivers with open sight distance on entrance ramps can help prevent wrong-way entries at interchange terminals. For partial-cloverleaf (parclo) interchange terminals with close-spaced two-way ramps, appropriate ...
Impacts of Directional Rumble Strips on Vehicle Speeds and Driver Behavior at Freeway Off-Ramps
Publisher: ASCE
Abstract: Drivers have an increased crash or incident risk when driving on freeway interchange ramps compared with the other interchange-related segments. Directional rumble strips (DRS), a pattern similar to the traditional traversable ...
Safety Effects of Median Treatments Using Longitudinal Channelizers: Empirical Bayesian Before-and-After Study
Publisher: American Society of Civil Engineers
Abstract: A new median treatment technique using longitudinal channelizers has been used in Florida as an alternative to the traditional permanent concrete barrier. However, the effects of the new technique on roadway safety and its ...
Operational Effects of U-Turns as Alternatives to Direct Left-Turns
Publisher: American Society of Civil Engineers
Abstract: This study analyzed the operational effects of a widely used access management treatment: using U-turns as alternatives to direct left-turns from driveways. Data were collected at 34 selected roadway segments in central ...
Field Implementation of Directional Rumble Strips to Deter Wrong-Way Driving on Freeways
Publisher: ASCE
Abstract: This paper presents the field implementation results of directional rumble strips (DRS), a low-cost traffic control device (TCD) designed to deter wrong-way driving (WWD) on freeways. Southbound off-ramps at Exits 208 and ...
Estimating Queue Length for Contraflow Left-Turn Lane Design at Signalized Intersections
Publisher: American Society of Civil Engineers
Abstract: An unconventional left-turn treatment called contraflow left-turn lane (CLL) design has been increasingly used in China to relieve traffic congestion associated with left-turn movements at signalized intersections. This ...