Under this research study, the effect of various delineation treatments on accident rates was assessed by analyzing accident data from more than 500 roadway sites in 10 States for tangent, winding and isolated horizontal curve sections on two-lane rural highways. Cost-benefit and cost models for evaluating specific delineation treatments were devel
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Under this research study, the effect of various delineation treatments on accident rates was assessed by analyzing accident data from more than 500 roadway sites in 10 States for tangent, winding and isolated horizontal curve sections on two-lane rural highways. Cost-benefit and cost models for evaluating specific delineation treatments were devel
...
Under this research study, the effect of various delineation treatments on accident rates was assessed by analyzing accident data from more than 500 roadway sites in 10 States for tangent, winding and isolated horizontal curve sections on two-lane rural highways. Cost-benefit and cost models for evaluating specific delineation treatments were devel
...
Under this research study, the effect of various delineation treatments on accident rates was assessed by analyzing accident data from more than 500 roadway sites in 10 States for tangent, winding and isolated horizontal curve sections on two-lane rural highways. Cost-benefit and cost models for evaluating specific delineation treatments were devel
...
Under this research study, the effect of various delineation treatments on accident rates was assessed by analyzing accident data from more than 500 roadway sites in 10 States for tangent, winding and isolated horizontal curve sections on two-lane rural highways. Cost-benefit and cost models for evaluating specific delineation treatments were devel
...
In this report, two concepts for reducing friction losses along post-tensioned tendons in pavement slabs are studied. One concept involved the use of vibration techniques to increase stressing efficiency, and the other concept included the reduction of friction coefficient through the use of a material which would also act as a grout after stressin
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The purpose of the research effort was to develop and field test a unique color and shape coding system which offered promise as a supplement to conventional guide signing on problem interchanges. Following a review of the technical literature, a series of laboratory studies was conducted to empirically identify the most appropriate color and shape
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The purpose of the research effort was to develop and field test a unique color and shape coding system which offered promise as a supplement to conventional guide signing on problem interchanges. Following a review of the technical literature, a series of laboratory studies was conducted to empirically identify the most appropriate color and shape
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The purpose of the research effort was to develop and field test a unique color and shape coding system which offered promise as a supplement to conventional guide signing on problem interchanges. Following a review of the technical literature, a series of laboratory studies was conducted to empirically identify the most appropriate color and shape
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This publication presents design procedures for the hydraulic analysis of bridge waterway openings. The text describes the general nature of the constriction created by constructing a highway/bridge crossing in a floodplain and provides detailed step-by-step design procedures for analyzing the flow through a bridge to calculate flow velocities and
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Status of Shale Embankment Research; What Network Simulation (NETSIM) Can Do for the Traffic Engineer; The Fifth Annual Review of the FCP; Design of Segmental Bridges; Electroslag Weldments: Performance and Needed Research
This report presents a state-of-the practice synopsis of EERRHV technology, findings of a current questionnaire survey, and an overview of existing ramp facilities in regard to design, construction, and practical operational techniques. Several existing emergency escape lanes are described, listing many of the benefits and shortcomings of each.
The objective of the program was to determine in full-scale testing how dynamic cargo shifting affects the stability of articulated trucks and establish the severity of the problem for two cases: (1) sloshing of liquid cargo and (2) swinging of hanging meat. Two tasks (A and B) were accomplished. Task A, Planning and Preparation, was devoted to obt
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Decision sight distance (DSD) has been defined as the distance at which drivers can detect a hazard or signal in a cluttered roadway environment, recognize it or it's threat potential, select the appropriate speed and path, and perform the required action safely and efficiently. A research effort was devised and performed to relate this concept to
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