On a road, the speed-density relationship of a traffic stream is given by u = 70 - 0.7 k (where speed u, is in km/h and density k, is in veh/km). At the capacity condition, the average time headway will be:

On a road, the speed-density relationship of a traffic stream is given

1.	On a road, the speed-density relationship of a traffic stream is given by u = 70 - 0.7 k (where speed u, is in km/h and density k, is in veh/km). At the capacity condition, the average time headway will be:
A.	1.0 s
B.	2.1 s
C.	1.6 s
D.	0.5 s
Answer» C. 1.6 s