A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Photoelectric tube counts traffic passing through Hudson tunnel
Every automobile passing through the Holland Tunnel under the Hudson River between New York and New Jersey is now registered at the exit by an electric traffic checker. The device works 24 hr a day, never missing the count, which is recorded instantly upon a dial in the administration building of the Tunnel Commission at Varick and Canal Streets in New York City. [Originally reported in "Telephone and Telegraph Age"]
Photoelectric tube counts traffic passing through Hudson tunnel
Every automobile passing through the Holland Tunnel under the Hudson River between New York and New Jersey is now registered at the exit by an electric traffic checker. The device works 24 hr a day, never missing the count, which is recorded instantly upon a dial in the administration building of the Tunnel Commission at Varick and Canal Streets in New York City. [Originally reported in "Telephone and Telegraph Age"]
Photoelectric tube counts traffic passing through Hudson tunnel
Journal of the A.I.E.E. ; 48 ; 559
1929-07-01
277573 byte
Article (Journal)
Electronic Resource
English
| Engineering Index Backfile | 1882
Engineering Index Backfile | 1935
| Engineering Index Backfile | 1935
| Engineering Index Backfile | 1935
Midtown Hudson tunnel. South tube. New York approach finish
Engineering Index Backfile | 1937