ALTERNATE PATHS, DISTRIBUTION PERCENTAGES, AND ROUTES

Also included in the SAMPLE.TFX database is a third scenario (Revised), which shows how to include different paths, distribution percentages, and routes in a scenario. This scenario is the Base Conditions scenario, with modifications. In defining the scenarios, it is necessary to name separate Path, Trip Distribution, and Route data sets.

Alternate paths are provided by setting the percentage for some paths to zero, thus turning them off for the current scenario.

Alternate trip distribution percentages are provided by naming and selecting additional Trip Distribution Percentages under the Options menu. The alternate percentage values are then entered in the distribution dialog box accessed from the zone pop-up menu.

Alternate routes are provided by drawing the routes in the Edit Routes mode, and turning routes on or off for a scenario by entering "Yes" or "No" in the "Evaluate" field.

INDEX

[1]

Windows, Windows95, Windows98, Windows 2000, Windows ME, Windows XP, MS-DOS, Novell, Pentium and IBM are registered trademarks of various software and hardware developers and are mentioned in this manual solely for informational purposes.

[2]

HCM 2000 methodology may require add-in module, contact Dowling Associates for details.
[3]

Highway Capacity Manual, Transportation Research Board, Washington, D.C., 2000.

[4]

Highway Capacity Manual, Special Report 209, Third Edition, Transportation Research Board, Washington, D.C., Updated 1997.

[5]

Highway Capacity Manual, Special Report 209, Third Edition, Transportation Research Board, Washington, D.C., Updated 1994.

[6]

Highway Capacity Manual, Special Report 209, Transportation Research Board, Washington, D.C., 1985

[7]

Transportation Research Circular 212, "Interim Materials on Highway Capacity", Transportation Research Board, Washington, D.C., 1980.

[8]

J. Gould, "Comparing the 1985 HCM and the ICU Methodolo gies", ITE Journal, Institute of Transportation Engineers, Washington, D.C., August 1990.

[9]

Technical Procedures Manual, Contra Costa Transporation Authority, 1991.
[10]

Canadian Capacity Guide for Signalized Intersections, Institute of Transportation Engineers, 1995.