00744721

Component

https://doi.org/10.3141/1605-12

http://scholar.google.com...LMAN&publication_year=1997

A program for expansion of Israeli railways has resulted in increased train speeds and frequencies on the most heavily used railway lines. These are situated in highly populated regions and are characterized by a significant amount of at-grade road-rail crossings. At-grade crossings present a barrier to road traffic and the danger of train-vehicle collisions. Because the current maximum train speed is about 120 km/hr, there was no clear policy concerning the need and the priority for grade separation at crossings. Simplified tools for rapid crossing evaluation when a crossing potential for grade separation is reviewed were developed. The evaluation tools include a criterion for preliminary crossing qualification and a formula for approximate evaluation of economic losses caused by at-grade crossing functioning. The field measurements and detailed investigation of the 31 most problematic locations provided a basis for building the tools. Two main factors leading to grade separation were considered: safety problems at the crossings and road vehicle delay costs. As demonstrated, the cost of accident risk at Israeli crossings does not significantly affect their ranking for grade separation. In consequence, the crossing parameters influence vehicle delays that constitute the basis for the simplified tools for preliminary crossing evaluation in Israel.

This paper appears in Transportation Research Record No. 1605, Research on Traffic Control Devices.

English

p. 96-105

1997

Transportation Research Record

0309061741

Figures (6) ; References (12) ; Tables (5)

Costs; Economic factors; Evaluation and assessment; Formulas; Grade separations; Qualifications; Railroad grade crossings; Safety; Traffic delays

Criteria

Israel

Economics; Finance; Highways; Operations and Traffic Management; Railroads; Research; Safety and Human Factors; I73: Traffic Control

TRIS, TRB, ATRI

Jan 2 1998 12:00AM

• DAYTIME PHOTOMETRIC REQUIREMENTS FOR PEDESTRIAN SIGNALS
• DRIVER EYE-SCANNING BEHAVIOR AS FUNCTION OF PAVEMENT MARKING CONFIGURATION
• DRIVER UNDERSTANDING OF ALTERNATIVE TRAFFIC SIGNS
• EFFECTS OF FONT AND CAPITALIZATION ON LEGIBILITY OF GUIDE SIGNS
• GUIDELINES FOR LEFT-TURN PHASING TREATMENT
• MODEL GUIDELINES FOR VISIBILITY OF ON-PREMISE ADVERTISEMENT SIGNS
• SYSTEM SIMULATION OF DUAL-GATE AT-GRADE RAILROAD-HIGHWAY CROSSINGS: DEVELOPMENT AND VERIFICATION
• USE OF PAVEMENT MARKINGS TO REDUCE REAR-END CONFLICTS AT COMMERCIAL DRIVEWAY LOCATIONS
• USER PREFERENCE FOR FLUORESCENT STRONG YELLOW-GREEN PEDESTRIAN CROSSING SIGNS
• USING ALL-WAY STOP CONTROL FOR RESIDENTIAL TRAFFIC MANAGEMENT
• VISIBILITY OF NEW CENTERLINE AND EDGE LINE PAVEMENT MARKINGS
• VISUAL DETECTION AND RECOGNITION OF FLUORESCENT COLOR TARGETS VERSUS NONFLUORESCENT COLOR TARGETS AS A FUNCTION OF PERIPHERAL VIEWING ANGLE AND TARGET SIZE