Optimal train velocity and size
By: David S. Lawyer.
Contributors: Rand Corporation.
Series: Paper / Rand -- P-3937; P (Rand Corporation) -- P-3937.
Publisher: Rand Corp.
Published: 1968
Place of publication: [Santa Monica, Calif
Language: eng
Number of pages: 15
Subjects: Railroad trains -- Speed.; Railroads -- Mathematical models.
Notes: Cover title.

"September 1968."

Includes bibliographical references (p. 15).