The NCDOT Work Zone Traffic Control Section is collecting speed data on 6 random Interstate/Freeway projects across the state that are using both Digital Speed Limit Signs and Work Zone Presence … [Read more...] about An Evaluation of the Effectiveness of Digital Speed Limit Signs and Work Zone Presence Lighting on Speed Compliance During Lane Closure Operations
Changeable Message Signs
Evaluating Driver Response to a Speed Feedback Trailer at Median Crossovers Within Freeway Construction Work Zones
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
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