IIT Research Institute
10 West 35 Street Chicago, Illinois 60616
312/567—4000
Mr. F. Rutyna
-25—
March 8, 1977
U.S. Department of Transportation
Transportation Systems Center
Kendall Square, Cambridge MA 021h2
Dear Mr. Rntyna:
APPENDIX B
Transmitted herewith are two copies of the February 4, 1977 CTA accident analysis which was performed as a "technical directive”
under IITRI Project J6366, Contract DOT-TSC-lOSZ.
ShOuld you have
any questions on any part of it, please contact the undersigned or
Dr. E. E. Hahn.
AL:ms Encl. cc: E. Boyle, UMTA 3~ll Longinow telephone input
Impacted Consist Movement
5 ft 10 ft 15 ft 20 ft
Cordially,
/s/ A. Longinow Manager
Structural Analysis
Collision Sgeed
7.02 mph 7.54 mph 8.25 mph 8.97 mph
(Minimum to cause instability)
