Highways Agency Report
Original Record
Shelfmark: SSR/TRL/IN2
Personal author: Barratt D A
Title: Speed/flow relations in the passenger tunnel at
Heathrow Airport
Publisher: Transport and Road Research Laboratory, 1973
Physical description: 6p., ill., charts, maps
Price: Unpriced
Series: Internal Note IN.0017/73
Notes - general: Abstract: Traffic speed and flows were observed over a
period of 23 hours at this tunnel in October 1972 to
ontain speed/flow relations. There is nothing in
these results to suggest that the speed/flow relations
in road tunnels differ materially from those
pertaining to other roads.
Keyword: Tunnel
Keyword: Speed Control
TRRL INTERNAL NOTE
copy:1 id:54046000301265 library:SSR location:SSR-SHELF