00714987

Component

http://onlinepubs.trb.org...trr/1995/1500/1500-003.pdf

https://scholar.google.co....+Oh&publication_year=1995

Previous research has concluded that horizontal curves on which design speeds are less than drivers' desired speeds exhibit operating speed inconsistencies that increase accident potential, and that current AASHTO design policy is unable to identify and address. One step to address these concerns is the development by the FHWA of an Interactive Highway Safety Design Model that incorporates a consistency module. A Highway Geometric Design Consistency Program has been developed to serve as a basis for this consistency module. The program is a menu-driven microcomputer procedure for evaluating horizontal alignment consistency on rural two-lane highways using two preliminary models: an operating speed profile model and a driver workload profile model. This paper reviews these preliminary models, describes the menu-driven procedure for using them, and recommends future development of the models and procedure.

This paper appears in Transportation Research Record No. 1500, Geometric Design, Roadside Safety Features, Roadside Hardware Monitoring, and Scenic Loop Tours. 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

01399820

English

p. 19-24

1995

Transportation Research Record

Figures (4) ; References (18)

Alignment; Consistency; Curves (Geometry); Design speed; Evaluation; Geometric design; Microcomputers; Operating speed; Rural highways; Software; Two lane highways

Horizontal alignment; Horizontal curvature

Design; Highways; I20: Design and Planning of Transport Infrastructure

TRIS, TRB

Dec 26 1995 12:00AM

• CALIBRATING AND VALIDATING TRAFFIC SIMULATION MODELS FOR UNCONVENTIONAL ARTERIAL INTERSECTION DESIGNS
• CLEAR ZONE REQUIREMENTS FOR SUBURBAN HIGHWAYS
• CONSISTENCY OF HORIZONTAL ALIGNMENT FOR DIFFERENT VEHICLE CLASSES
• DEVELOPMENT AND IMPLEMENTATION OF AN AUTOMATED FACILITY INVENTORY SYSTEM
• DEVELOPMENT OF EVALUATION CRITERIA FOR LOOP TOURS
• DEVELOPMENT OF GUARDRAILS FOR HIGH-SPEED COLLISIONS
• DEVELOPMENT OF VARIABLE YAW ANGLE SIDE IMPACT SYSTEM AND TESTING ON DOUBLE THRIE BEAM MEDIAN BARRIER
• ESTIMATING SAFETY EFFECTS OF CROSS-SECTION DESIGN FOR VARIOUS HIGHWAY TYPES USING NEGATIVE BINOMIAL REGRESSION
• EVALUATION OF FLUSH MEDIANS AND TWO-WAY, LEFT-TURN LANES ON FOUR-LANE RURAL HIGHWAYS
• GEOGRAPHIC INFORMATION SYSTEM APPLICATIONS IN THE HEART OF ILLINOIS HIGHWAY FEASIBILITY STUDY
• GEOMETRIC DESIGN FOR ADEQUATE OPERATIONAL PREVIEW OF ROAD AHEAD
• INVESTIGATION OF OBJECT-RELATED ACCIDENTS AFFECTING STOPPING SIGHT DISTANCES
• LENGTHS OF LEFT-TURN LANES AT UNSIGNALIZED INTERSECTIONS
• PERFORMANCE LEVEL 1 BRIDGE RAILINGS
• PERFORMANCE LEVEL 2 AND TEST LEVEL 4 BRIDGE RAILINGS FOR TIMBER DECKS
• PERFORMANCE LEVEL 3 BRIDGE RAILINGS
• RISK OF ROLLOVER IN RAN-OFF-ROAD CRASHES
• SIGHT DISTANCE ON HORIZONTAL ALIGNMENTS WITH CONTINUOUS LATERAL OBSTRUCTIONS
• SLOTTED RAIL GUARDRAIL TERMINAL
• TANGENT LENGTH AND SIGHT DISTANCE EFFECTS ON ACCIDENT RATES AT HORIZONTAL CURVES ON RURAL TWO-LANE HIGHWAYS
• TRAVEL EFFICIENCY OF UNCONVENTIONAL SUBURBAN ARTERIAL INTERSECTION DESIGNS
• TRIPLE T: TRUCK THRIE BEAM TRANSITION
• TURNING VEHICLE SIMULATION: INTERACTIVE COMPUTER-AIDED DESIGN AND DRAFTING APPLICATION