Steady amber signal generally warns drivers that:
Choose the correct answer
Red signal is about to appear and vehicles should stop if safe
Pedestrians only may drive
Green will continue indefinitely
No signal applies
Correct Answer
A. Red signal is about to appear and vehicles should stop if safe
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Amber is a clearance/change interval warning between green and red. Reference: IRC:93-1985 Guidelines on Design and Installation of Road Traffic Signals; public PDF page refs Technical aspects - steady amber signal; contents show p.8, PDF around p.15
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