The Rumbler is a temporary rumble strip consisting of several plastic bumps that are six inches wide, four (to six) feet long, and between 0.15 and 0.25 inches high. They are affixed to the pavement … [Read more...] about Evaluation of Rumbler, Preformed Rumble Strip
Managing Speeds
Removable Orange Rumble Strips
A previous evaluation of this product found that the ease of application and removal represented a significant advantage over traditional asphalt rumble strips, but that a single thickness was … [Read more...] about Removable Orange Rumble Strips
Comparison of ORS and Asphalt Rumble Strips
In this evaluation, the Removable Rumble Strip from Advanced Traffic Markings (ATM) was compared with the KDOT standard asphalt rumble strips (Asphalt). Orange strips from ATM were used in this … [Read more...] about Comparison of ORS and Asphalt Rumble Strips
Evaluation of Data from Test Application of Optical Speed Bars to Highway Work Zones
The proximity of traffic and workers in highway work zones demand that safety be a high priority. The issue of traffic speeds in highway work zones has long been an issue receiving much attention. … [Read more...] about Evaluation of Data from Test Application of Optical Speed Bars to Highway Work Zones
Signs Should Be a Warning
The M42, new variable speed limit signs began operating to slow down people speeding. The M42 is more technologically advanced than the M25, which was introduced in 1994. Paul Watters, the head of … [Read more...] about Signs Should Be a Warning
Development and Testing of Variable Speed Limit Control Logics for Work Zones Using Simulation
This study is an attempt to evaluate the performance of various speeds at work zones and to develop VSL control logics that would calculate suitable speeds for different traffic conditions. The … [Read more...] about Development and Testing of Variable Speed Limit Control Logics for Work Zones Using Simulation