Sec. 489(23). Passing street cars.
(a) The driver of a vehicle overtaking any railway, interurban
or street car stopped or about to stop for the purpose of receiving
or discharging any passenger shall bring such vehicle to
a full stop not closer than ten feet to the nearest exit of such
street car and remain standing until such passenger has boarded
such car or reached adjacent sidewalk except that where a safety
zone has been established a vehicle may be driven past any such
railway, interurban or street car with due regard and caution for
the safety of pedestrians.