The signals will be placed on the top of the road near an intersection.
Stopping Time and Distance at a Red light
The VUT should be able to stop at a Red signal. The signal will turn red at approximately 20 metres or more from the VUT. The VUT is expected to stop within 7 metres of the signal, at/before the ‘Stop Line’ drawn across the road. The front edge of the VUT must NOT cross the ‘Stop Line’ at the Red light nor must it be more than 2 m behind the ‘Stop Line’. “STOP” line drawn on the road and “STOP” sign board will be placed on the track for this purpose. Govt. Standards given in the CPRS document will be followed accordingly for STOP and traffic signals.The data logger should record the time lag and distance travelled between the turning on of the Red light signal and the activation of brakes.
Figure 15.16 Page 78 of CPRS document
Starting Time at a Green light
The VUT should start moving forward when the signal turns green within a time lag of 2 sec. Govt. Standards given in the CPRS document will be followed accordingly for traffic signals.
Figure 15.16 Page 78 of CPRS document
Turning at Left and Right Signals
The VUT should take a left or a right turn, along with blinking indicator lights, according to the signal given at a cross-road. This will be achieved by either switching the indicator on at least 10 seconds prior to reaching the turn when the VUT is in motion or switching the indicator on when the VUT is at rest. In the latter case, the VUT is expected to start moving within 2 seconds of turning the indicator signal on.
Figure 14.44, 14.45, 14.46, 14.47 Page 73 of CPRS document
The signals will be placed on the top of the road near an intersection.