This study is monitoring the performance of cable guardrail installed in Colorado. The three-year study will gather accident, maintenance, and repair data from sites and build databases to evaluate the data.
Traffic noise can be considered an environmental pollution because it lowers the standard of living. Research in Europe and in the United States has indicated that it is possible to build pavement surfaces that will reduce the level of noise generated on roadways. This report provides the results of testing to define the noise levels of selected highway sections in Colorado.
Describes the development and application of geographic information systems (GIS) and remote sensing (RS) databases and analysis models for cumulative effects assessment resulting from growth associated with transportation infrastructure.
This study investigated the use of infrared thermometers to detect hot or defective brakes on trucks traveling through the eastbound Port Of Entry (POE) on I-70 in Dumont, CO. The objective of this evaluation was to develop brake temperature screening criteria that can be used to identify potential brake-related problems.
This study evaluated the condition of the thermoplastic and pavement marking tape stripes through several winters to see if the grooves provided significant protection for the stripes. Placing lane markings in shallow grooves in the pavement results in considerably longer marking life, making the highway safer for drivers.
