Shoulder rumble strips have proven to be an effective roadside treatment in preventing run-off-the-road crashes on rural highways. Based upon the proven effectiveness, most States now require the … [Read more...] about Shoulder Rumble Strips — Effectiveness and Current Practice
Types of Roads
Effectiveness of Steady-Burn Lights for Traffic Control in Tangent Sections of Highway Work Zones
Examined in this study is the effectiveness of Type C steady-burn lights on drums marked with high intensity (Type G) reflective sheeting in tangent sections of highway construction work zones. The … [Read more...] about Effectiveness of Steady-Burn Lights for Traffic Control in Tangent Sections of Highway Work Zones
Evaluation of Flagger Training Session on Speed Control in Rural Interstate Construction Zones
A study was conducted on the evaluation of a flagger training session on speed control in rural Interstate construction zones. Two flaggers were randomly selected to participate in a training session, … [Read more...] about Evaluation of Flagger Training Session on Speed Control in Rural Interstate Construction Zones
Field Studies of Temporary Pavement Markings at Overlay Project Work Zones on Two-Lane, Two-Way Rural Highways (with Discussion and Closure)
In response to FHWA's proposed rule requiring that all states use 4-ft pavement markings on 40-ft centers as temporary markings in highway work zones, NCHRP awarded a research contract to the Texas … [Read more...] about Field Studies of Temporary Pavement Markings at Overlay Project Work Zones on Two-Lane, Two-Way Rural Highways (with Discussion and Closure)
Selection of Work Zone Channelizing Devices Using the Value Engineering Approach (abridgement)
The use of value engineering for selecting work zone channelizing devices is investigated. For illustration, the approach is used to select devices for a lane closure taper at a rural freeway work … [Read more...] about Selection of Work Zone Channelizing Devices Using the Value Engineering Approach (abridgement)
Alternative Sign Sequences for Work Zones on Rural Highways
Two experiments were done on a two-lane rural road (US-2) in central Maine to evaluate the effectiveness of alternate signing sequences for providing warning to motorists of construction and … [Read more...] about Alternative Sign Sequences for Work Zones on Rural Highways