Traffic Signal Timing Calculator
Inputs
veh/hr
veh/hr/lane
HCM 6th Ed: base s₀=1,900 pc/h/ln; adjusted for width, turns, heavy vehicles; typical 1,700–1,900 vph
sec
sec
sec
MUTCD/HCM: urban 60–90 sec; major arterials 90–120 sec; Webster optimum typical 70–100 sec
Tab to move between fields
Results
Green Time per Phase
39 sec
Volume/Capacity (v/c)
0.98
Effective Green41 sec
Delay per Vehicle24 sec
Approach Capacity820 veh/hr
Total Lost Time12 sec