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Publication Number: FHWA-RD-97-106

Rural Public Transportation Technologies: User Needs and Applications FR1-798

APPENDIX C

ACCIDENT TYPE DISTRIBUTIONS BY RAMP SEGMENT TYPE FOR EIGHT SELECTED RAMP TYPES

This appendix presents accident type distributions by ramp segment type for the following eight selected ramp types in tables 56 through 63, respectively:

  • Rural diamond off-ramps.
  • Rural diamond on-ramps.
  • Urban diamond off-ramps.
  • Urban parclo loop off-ramps.
  • Urban free-flow loop off-ramps.
  • Urban outer connection off-ramps.
  • Urban direct and semi-direct connection ramps.
  • Urban C/D roads.

In the tables, accident types are classified into the following categories:

  • Single-vehicle noncollision accidents:
    • Ran off road
    • Overturned
    • Other
  • Single-vehicle collision accident with:
    • Parked vehicle
    • Pedestrian
    • Fixed object
    • Other collision
  • Multiple-vehicle collision accidents:
    • Head-on
    • Sideswipe
    • Rear-end
    • Angle
    • Left turn
    • Right turn
    • Other collision
List of Tables

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