Traffic Length 100m 200m 300m 400m 500m 600m
Full RED 12’’ 22’’ 32 ’’ 42’’ 52’’ 62’’
Low Traffic
(2000 cars/jour)
Yellow 20’’ 20’’ 20’’ 24’’ 28’’ 32’’
Medium Traffic
(2 to 5000 cars/jour)
Yellow 30’’ 30’’ 36’’ 46’’ 54’’
Heavy Traffic
(5 to 8000 cars/jour)
Yellow 44’’ 66’’ 90’’ 112’’
Very Heavy Traffic
(8 to 11000 cars/jour)
Yellow 130’’
• Times are given in seconds.
• The crossed out sections represent impossible traffic combinations, in an alternating 2 lights
configuration on a work site.
Length 100m 200m 300m 400m 500m 600m
Full RED 12’’ 22’’ 32 ’’ 42’’ 52’’ 62’’
Heavy Traffic
(5 à 8000 véh./jour)
Yellow with
traffic
30’’ 44’’ 58’’ 72’’
Yellow against
traffic
20’’ 24’’ 32’’ 38’’
Very Heavy Traffic
(8 to 11000 cars/jour)
Yellow with
traffic
46’’ 72’’ 98’’
Yellow against
traffic
26’’ 38’’ 50’’
Traffic Limit
(11 to 14000 cars/jour)
Yellow with
traffic
86’’
Yellow against
traffic
45’’
With traffic
Against traffic
REGLEMENTARY WAITING TIME SCALE
3
*Full red = Time when both lights are red.
Waiting time = 2x full red + yellow
2 LIGHTS ALTERNATING PROGRAMMING - UNBALANCED TRAFFIC
2 LIGHTS ALTERNATING PROGRAMMING - BALANCED TRAFFIC
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