COMPUTATION OF DYNAMIC LOADS AT GRADE CROSSINGS; A USER'S MANUAL OF THE COMPUTER PROGRAM
This report gives the theoretical background and a description of a computer program, DYMOL, along with its revisions. This program was originally written to calculate the dynamic forces applied normal to a rigid surface by moving traffic. Revisions are made in the program to include the flexibility (stiffness, damping and inertia effect) of the riding surface, and a special subroutine is added to generate typical grade crossing profiles. Input formats, program listing and a glossary of variables are given for the use of the program. Also included with the report are the descriptions of the program's subroutines and functions and method of calculation of dynamic loads along with Maysmeter readings.
- Research performed in cooperation with FHWA. See also RRIS 08 131327 7602, HRIS & RRIS 145075 (RRIS 08; Bulletin 7702), and RRIS 08 157501 7702.
Arlington, TX United States 76011
- Ahmad, A
- Lytton, R L
- Publication Date: 1976-1
- Features: Appendices; Figures; References; Tables;
- Pagination: 65 p.
- TRT Terms: At grade intersections; Computer programs; Design; Dynamic loads; Flexibility; Highways; Manuals; Motion; Motor vehicles; Railroad grade crossings; Roughness
- Uncontrolled Terms: Design criteria; Moving vehicles
- Subject Areas: Design; Highways; Pavements; Railroads;
- Accession Number: 00139714
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: TTI-2-18-74-164-2 Intrm Rpt.
- Contract Numbers: Stdy No. 2-18-74-164
- Files: TRIS
- Created Date: Oct 6 1977 12:00AM