00983182

Monograph

This Transportation Research Record contains 9 papers on the topic of geometric design of highways and its effects on traffic operations. Subject areas discussed include design and performance of intersections, the influence of speed on design standards, design standards for roundabouts, vertical alignments, sight distance for unprotected left-turn traffic, the safety evaluation process for roads, highway design consistency, and the length of dual left-turn lanes.

English

86 p.

2004

Transportation Research Record

0309094771

Figures; Photos; References; Tables

Design standards; Evaluation and assessment; Geometric design; Highway operations; Highway safety; Intersections; Left turns; Roundabouts; Sight distance; Traffic speed

Design consistency; Dual left turn lanes; Vertical alignment

Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure

TRIS, TRB, ATRI

Dec 2 2004 12:00AM

• BASIS OF THE SWISS DESIGN STANDARD FOR ROUNDABOUTS
• DESIGN AND OPERATIONAL PERFORMANCE OF CROSSOVER DISPLACED LEFT-TURN INTERSECTIONS
• DETERMINING CRITICAL LENGTH OF GRADE FOR GEOMETRIC DESIGN OF VERTICAL ALIGNMENTS
• DEVELOPMENT OF THE DISPLACED RIGHT-TURN INTERSECTION
• FUZZY MODEL FOR SAFETY EVALUATION PROCESS OF NEW AND OLD ROADS
• GEOMETRIC MODELS TO CALCULATE INTERSECTION SIGHT DISTANCE FOR UNPROTECTED LEFT-TURN TRAFFIC
• HIGHWAY DESIGN CONSISTENCY: REFINING THE STATE OF KNOWLEDGE AND PRACTICE
• INFLUENCE OF SPEEDS ON DESIGN STANDARDS IN SWITZERLAND
• LENGTHS OF DOUBLE OR DUAL LEFT-TURN LANES