00474253

Component

http://onlinepubs.trb.org...trr/1986/1069/1069-014.pdf

https://scholar.google.co...Hill&publication_year=1986

There is extensive literature that describes the effect of flashing beacons on such driver behavior as speed adjustment, but none has been identified that presents the effect of such beacons on the frequency of accidents. The results are presented of an accident analysis that was conducted to determine the effect of a flashing beacon on the frequency of accidents at a dangerous high-speed rural curve. A before-and-after accident analysis was conducted using 2 years of "before" data and 2 years of "after" data. The analysis revealed a 50 percent reduction in total accidents but a 91 percent reduction in accidents of the speed/lost-control/fixed-object type--the type expected to be most directly affected by the installation of a flashing beacon. Benefit-cost ratios in excess of 50:1 were demonstrated for this flashing beacon installation, and the cost of the beacon was saved within 2 months by the elimination of almost all the lost-control type of accidents.

Publication of this paper sponsored by Committee on Traffic Control Devices. Publication of this paper sponsored by Committee on Traffic Control Devices. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00490259

HS-040 103

pp 80-82

1986

Transportation Research Record

0-309-04063-9

Print

Figures (1) ; Maps (1) ; References (6) ; Tables (3)

Beacons; Before and after studies; Curves (Geometry); Flashing beacons; Measures of effectiveness; Rural highways; Safety; Traffic safety

Effectiveness

Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control; I81: Accident Statistics

HSL, TRIS, TRB

Oct 31 1990 12:00AM

• A FURTHER NOTE ON UNDULATION AS A SPEED CONTROL DEVICE
• A PROBABILISTIC APPROACH FOR DETERMINING THE CHANGE INTERVAL (DISCUSSION AND CLOSURE)
• A REASSESSMENT OF THE TRAFFIC SIGNAL CHANGE INTERVAL
• ACCIDENT EXPERIENCE OF FLASHING TRAFFIC SIGNAL OPERATION IN PORTLAND, OREGON
• ADAPTING THE U.S. DEPARTMENT OF TRANSPORTATION RAIL-HIGHWAY CROSSING RESOURCE ALLOCATION MODEL TO THE MICROCOMPUTER
• ANALYTICAL WARRANT FOR SEPARATE LEFT-TURN PHASING (ABRIDGMENT)
• COUNTERING SIGN VANDALISM WITH PUBLIC SERVICE ADVERTISING (ABRIDGMENT)
• CRITIQUE OF RAIL-HIGHWAY GRADE CROSSING EFFECTIVENESS RATIOS AND RESOURCE ALLOCATION PROCEDURES (DISCUSSION AND CLOSURE)
• GUIDELINES FOR PROTECTED/PERMISSIVE LEFT-TURN SIGNAL PHASING
• GUIDELINES FOR SELECTING TYPE OF LEFT-TURN PHASING
• RUMBLE STRIPS AND PAINT STRIPES AT A RURAL INTERSECTION
• THE EFFECTS OF WIDE EDGE LINES ON LATERAL PLACEMENT AND SPEED ON TWO-LANE RURAL ROADS
• THE SAFETY, ECONOMIC, AND ENVIRONMENTAL CONSEQUENCES OF REQUIRING STOPS AT RAILROAD-HIGHWAY CROSSINGS
• THE USE OF CONSTANT WARNING TIME SYSTEMS AT RAIL-HIGHWAY GRADE CROSSINGS
• TIMING DESIGN OF SIGNAL CHANGE INTERVALS (DISCUSSION AND CLOSURE)
• TIMING DESIGN OF TRAFFIC SIGNALS
• VALIDATION OF A TRAFFIC MODEL