00933653

Component

https://doi.org/10.3141/1796-04

http://scholar.google.com...rick&publication_year=2002

Realistic and dynamic visual models were developed that can be used in a teaching context for illustrating concepts that affect the appearance and fit of a highway alignment. The models consist of short video clips of the highway taken from the perspective of a vehicle's windscreen. These video images of the roadway are coupled with graphs showing the corresponding vertical and horizontal alignment of the roadway. The users of these models can simulate a drive over the selected highway segment and visually assess the appearance and continuity of the alignment. They can then study the accompanying alignment graphs to evaluate how different combinations of vertical and horizontal elements affect the appearance and continuity of the alignment. Each of the video clips was selected to illustrate either a good or bad example of a specific concept affecting alignment design. Some of the concepts illustrated include the coordination of vertical and horizontal alignment and consistency in alignment development. The video clips were developed using images and data from the Connecticut Department of Transportation's photologging system.

This paper appears in Transportation Research Record No. 1796, Geometric Design and the Effects on Traffic Operations 2002.

English

p. 35-40

2002

Transportation Research Record

0309077214

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

Aesthetics; Alignment; Graphs; Highway design; Photologging; Simulation; Three dimensional displays; Visualization

Horizontal alignment; Vertical alignment; Video images

Connecticut

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

TRIS, TRB, ATRI

Nov 7 2002 12:00AM

• FREEWAY ON-RAMP DESIGN CRITERIA FOR RAMP METERS WITH EXCESSIVE QUEUE DETECTORS
• INFLUENCE OF VERTICAL ALIGNMENT ON HORIZONTAL CURVE PERCEPTION: PHASE I: EXAMINING THE HYPOTHESIS
• INFLUENCE OF VERTICAL ALIGNMENT ON HORIZONTAL CURVE PERCEPTION: PHASE II: MODELING PERCEIVED RADIUS
• INTERVEHICLE SPACINGS AND QUEUE CHARACTERISTICS
• METHODOLOGY TO CALCULATE SIGHT DISTANCE AVAILABLE TO DRIVERS AT SKEWED INTERSECTIONS
• OPERATIONAL EFFECTS OF U-TURNS AS ALTERNATIVES TO DIRECT LEFT TURNS FROM DRIVEWAYS
• RELATIONSHIP OF DESIGN, OPERATING, AND POSTED SPEEDS ON HORIZONTAL CURVES OF RURAL TWO-LANE HIGHWAYS IN NEBRASKA
• SAFETY EVALUATION PROCESS FOR TWO-LANE RURAL ROADS: A 10-YEAR REVIEW
• SELECTION OF DESIGN SPEED VALUES