An Evaluation of Warning Land Regulatory Signs for Curves on Rural Roads PDF Download
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Author: United States. Federal Highway Administration
Publisher:
ISBN:
Category : Traffic signs and signals
Languages : en
Pages :
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Book Description
Author: United States. Federal Highway Administration
Publisher:
ISBN:
Category : Traffic signs and signals
Languages : en
Pages :
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Book Description
Author: R. W. Lyles
Publisher:
ISBN:
Category : Signs and signboards
Languages : en
Pages : 82
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Book Description
The report reviews an experiment undertaken to examine the effectiveness of five sign treatments for controlling driver speeds in the vicinity of hazardous horizontal curves on rural two-lane highways. Signs examined ranged from the standard curve warning arrow to a regulatory speed zone sign in conjunction with a curve warning sign. Data collected during the experiment included both the following electronic and manual data: speeds of motorists as they approached and negotiated two horizontal curves, vehicle classification and registration information, and whether vehicles crossed over center and edge line markings.
Author: R. W. Lyles
Publisher:
ISBN:
Category : Signs and signboards
Languages : en
Pages : 44
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Book Description
The report reviews an experiment undertaken to examine the effectiveness of five sign treatments for controlling driver speeds in the vicinity of hazardous horizontal curves on rural two-lane highways. Signs examined ranged from the standard curve warning arrow to a regulatory speed zone sign in conjunction with a curve warning sign. Data collected during the experiment included both the following electronic and manual data: speeds of motorists as they approached and negotiated two horizontal curves, vehicle classification and registration information, and whether vehicles crossed over center and edge line markings.
Author: R. W. Lyles
Publisher:
ISBN:
Category : Traffic signs and signals
Languages : en
Pages : 0
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Book Description
Author: R. W. Lyles
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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Book Description
Author: N. E. Walton
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 156
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Book Description
Warrants and guidelines for warning and regulatory signs and markings in the Manual on Uniform Traffic Control Devices (MUTCD) are evaluated for functional, economical, and aesthetical applicability to low volume rural roads. The research involves classifying the types of low volume rural roads and identifying driver information needs on the various classifications. Supplemental guidelines to the MUTCD based on safety, costs, and aesthetics are developed and validated.
Author: Karen Dixon
Publisher:
ISBN:
Category : Rural roads
Languages : en
Pages :
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Book Description
Author: Barton E. Jennings
Publisher:
ISBN:
Category : Road markings
Languages : en
Pages : 40
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Book Description
Testing effect of 3 post-mounted delineation systems on vehicle lateral placement and speed.
Author: R. W. Lyles
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
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Book Description
Author: Ronald Gibbons
Publisher:
ISBN:
Category : Road markings
Languages : en
Pages : 0
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Book Description
Run-off-road crashes are a major problem for rural roads. These roads tend to be unlit, and drivers may have difficulty seeing or correctly predicting the curvature of horizontal curves. This leads to vehicles entering horizontal curves at speeds that are too high, which can often lead to vehicles running off the roadway. This study was designed to examine the effectiveness of a variety of active and passive curve warning and curve delineation systems on two two-lane rural roads to determine which is the most effective at reducing vehicle speeds and assisting lane-keeping. The study consisted of a human-factors study, as well as an observational study. There were nine curves examined in the study on two road sections in Southwest Virginia. The human-factors study included participants whose speed and lane position were tracked as they drove through eight curves, both before and after new treatments were installed in each of the eight curves. The observational study examined the speed and lane position of traffic on all the curves before and after the installation of the new treatments. The observational study included a curve on a road near the primary study section. The results of the study were mixed, with every tested system leading to some reductions in speed or encroachments at some parts of the curve while also leading to increases in the same values at other parts of the curve. No clear difference was discovered between passive and active systems or between delineation and warning systems. The study recommends that in addition to a safety assessment, specific curve characteristics and budget should be the main considerations in the selection of a treatment for a curve.
