Warning system for signals with lost power.

Description

Main Author

Pant, Prahlad D.

Related Names

Lenski, Sarah E.

Language(s)

English

Published

1999.

Subjects

Transportation system management.
Transportation planning.
Traffic control devices.
Maintenance.
Ohio.
Maintenance/ Repair.

Physical Description

54 p. : 3 ref. forms. tables.

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