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Studies And Reports
In-Roadway Warning Light (IRWL) Studies & Reports
Numerous studies have been completed by independent private and public agencies utilizing LightGuard System original products. These studies have been conducted in a variety of locations from Florida to New Jersey, in California, Washington and Hawaii.
- Whitlock & Weinburger Report - The original study conducted on IRWL enhanced crosswalks systems that paved the way for acceptance by the Federal Highway Administration as a standard in the Manual on Uniform Traffic Control Devices (MUTCD). ⇒For Complete Study See PDF
⇒ For Executive Summary See PDF
- NCHRP Report: Applications of Illuminated, Active In-Pavement Marker Systems - A summary report by the Transportation Research Board regarding in-pavement signal light applications at crosswalks, intersections, highway-rail crossings, lane delineators, and other applications. Released June 2008. ⇒ For Report See PDF
Developing "Warrants" for Crosswalk Locations:
- Kirkland's Experience with In-Pavement Flashing Lights At Crosswalks - Presented at the ITE/IMSA Annual Meeting, February 8, 1999 Lynwood, Washington. This study was conducted by the City of Kirkland, Oregon regarding their experience and results with flashing crosswalks: how to determine appropriate crosswalk locations, how the system works, how it was installed, and their effectiveness in causing vehicles to respond to pedestrians. ⇒ For Report See PDF
- Virginia DOT Study: Final Report, Development Guidelines for In-Roadway Warning Lights - "The purpose of this Research was to develop guidelines for IRWLs that the Virginia Department of Transportation (VDOT) could use statewide to ensure uniformity. The guidelines include both "planning" and "design" guidelines. Planning guidelines focus on when and where IRWLs are needed or justified." ⇒ For Study See PDF
Comparison Study of Overhead Beacon Lights VS IRWL Enhanced Crosswalks -
- San Jose Crosswalk Enhancement Comparison Study - Comparing the effectiveness between IRWL enhanced crosswalk systems and overhead beacon lights. May 2001, City of San Jose California. ⇒ For Study See PDF
Studies of Traffic Signal Enhancement (TSE™) "Red Light Running" Solutions -
- Summary Report "Before And After" Data Results Stop Line LED Lights Experimental Traffic Control Device Application - Southwest Intersection, Anaheim, California June 2002 ⇒ For Study See PDF
- Mid-Block Pedestrian Crosswalk, Traffic Engineering Study - The purpose of this study is to test the use of in-pavement signal lights installed at the stop bar of a pedestrian-actuated signalized, mid-block crosswalk. This crosswalk is located on West Alabama Street in the Uptown District of Houston, Texas. Study was conducted in June of 2003. ⇒ For Summary Study See PDF
⇒ For Complete Study See PDF
Report on Paramount, CA TraxAlert™ Installation -
- The highway–rail crossing is located at the intersection of Paramount Boulevard and Rosecrans Avenue in Paramount, California. The location is unusual because the railroad crosses diagonally through the intersection and not just across one approach. The intersection was too wide for regular railroad crossing gates, and the typical railroad crossing lights would have visually blocked the existing traffic signal faces. The in-pavement TraxAlert™ system works with the existing overhead signal lights, providing a safe crossing at the intersection. ⇒ For Full Report See PDF
For a complete list of Academic and Government studies, reports, and additional information on IRWL enhanced crosswalk systems please visit:
STUDIES & REPORTS
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