A field study was conducted on a Missouri low-volume road to examine if temporary rumble strips could improve safety in elevated-risk work zones. This study complements previous studies by addressing several new issues: vehicles that cross over a lane to bypass strips, physical displacement of strips, and deployment of strips at an angle. An objective was to measure performance in a challenging and nonidealized site, thus the site contained geometric challenges such as curves, a bridge approach, and a pavement transition. The study found an increase of more than 10% in the number of vehicles that braked due to rumble strips, an average speed decrease of up to 6 kilometers per hour (3.7 miles per hour), and an increase in speed compliance of 2.9% for the braking vehicles. But the number of lane crossovers increased by 8.79%. The study also compared rumble strips deployed perpendicularly and at an angle and found no significant differences in braking and speed reductions but found an increase in lane crossovers. In terms of vertical movement, perpendicular strips did not move whereas angled strips moved up to 3.73 cm per 100 wheel impacts. Taking into account all study measures, the rumble strips provided a net improvement in safety.
[1]
Paul J Carlson,et al.
Evaluation of Speed Displays and Rumble Strips at Rural-Maintenance Work Zones
,
2001
.
[2]
Eric Meyer,et al.
Evaluation of Orange Removable Rumble Strips for Highway Work Zones
,
2000
.
[3]
Steven D Schrock,et al.
Closed-Course Test and Analysis of Vibration and Sound Generated by Temporary Rumble Strips for Short-Term Work Zones
,
2010
.
[4]
R L Morgan.
TEMPORARY RUMBLE STRIPS
,
2003
.
[5]
Steven D Schrock,et al.
Evaluation of Portable Plastic Rumble Strips at Short-Term Maintenance Work Zones
,
2011
.
[6]
Evaluation of Rumbler , Preformed Rumble Strip
,
2003
.
[7]
法律.
Manual on Uniform Traffic Control Devices
,
2010
.
[8]
Steven D Schrock,et al.
A Closed-Course Feasibility Analysis of Temporary Rumble Strips for Use in Short-Term Work Zones
,
2010
.