Two-wire emergency call system. Paper presented at the 52nd Annual Meeting of the Highway Research Board HRB, Washington, D.C., January 1973.

Author(s)
Reilly, E.F. & Hollinger, R.L.
Year
Abstract

The results of installation and usage tests of a two-wire emergency call system are reported. Detailed records of services needed and provided, response times, and system installation and maintenance costs were maintained. Similar costs for telephone and call box systems used elsewhere are included for comparison.

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Publication

Library number
B 6771 (In: B 4971 S) /85/91.2/ IRRD 210593
Source

In: Highway Research Record HRR No. 450, 1973, p. 1-12, 2 fig., 2 graph., 6 tab., 8 ref.

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