A series of field evaluations were performed to assess the speed reduction effects of a speed feedback trailer (SFT) positioned at various locations before and after a median crossover section within … [Read more...] about Evaluating Driver Response to a Speed Feedback Trailer at Median Crossovers Within Freeway Construction Work Zones
Measures of Effectiveness
Evaluating Driver Response to Speed Feedback Trailers and Digital Speed Limit Signs Positioned Near the Work Area Within Freeway Construction Work Zones
A series of field evaluations were conducted within work zone lane closures on rural freeways in Michigan to determine 1) the optimal positioning of a speed feedback trailer (SFT) approaching an … [Read more...] about Evaluating Driver Response to Speed Feedback Trailers and Digital Speed Limit Signs Positioned Near the Work Area Within Freeway Construction Work Zones
Evaluating the Intensity of Green Warning Light for Snowplow Trucks Using CIELAB Color Space
Snowplow Trucks (SPTs) work under extremely challenging conditions, typically traveling at lower speeds compared with other vehicles. Because of reduced speeds and poor visibility, a major safety … [Read more...] about Evaluating the Intensity of Green Warning Light for Snowplow Trucks Using CIELAB Color Space
Improving the Effectiveness of Speed Feedback Trailers in Freeway Work Zones
This study investigated methods for improving the effectiveness of speed feedback trailers (SFTs) when used as a speed management strategy in highway work zones. The research included a literature … [Read more...] about Improving the Effectiveness of Speed Feedback Trailers in Freeway Work Zones
Effectiveness of Contrast Markings on Roadways and Orange Markings in Work Zones
Lane departure crashes are a leading cause of fatalities and injury crashes on roadways. To solve this problem, innovative marking in the form of contrasted white on concrete sections and orange … [Read more...] about Effectiveness of Contrast Markings on Roadways and Orange Markings in Work Zones
Impact of Work Zone Warning Light Configurations on Driver Behavior
The Move Over Law (Minnesota Statute 169.18, Subdivision 11) recognizes the impact that lane choice has on worker safety by requiring drivers to move at least one lane away when passing a parked … [Read more...] about Impact of Work Zone Warning Light Configurations on Driver Behavior