Beacons Off, Children Still Crossing
At 3:35 p.m. on a Wednesday, you are westbound on a two-lane street posted 35 mph. You approach a school zone with a 'SCHOOL SPEED LIMIT 25 WHEN FLASHING' sign; the yellow beacons are not flashing. The dismissal bell rang at 3:15, and children are still on the sidewalk and crossing in ones and twos at an unsignalized marked crosswalk 120 feet ahead. A crossing guard in an orange vest stands at the curb but has not stepped into the street; her stop paddle is held down at her side. A minivan in the eastbound lane is stopped 30 feet before the crosswalk, creating a sight-line blockage. A ball rolls into your lane from between parked cars. The pavement has a white transverse line and a 'SCHOOL' marking. Your speed is 34 mph and the road is dry.
1. What speed should you choose, given that the beacons are off and the posted limit is 35 mph? Explain.
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The '25 WHEN FLASHING' sign makes 25 mph the posted school-zone limit only during flashing periods, but it does not make 35 mph automatically safe. The basic speed law requires a speed reasonable for existing conditions. At 3:35, dismissal ended 20 minutes earlier, but children are still crossing; a minivan blocks your view; a ball has entered the lane. Those conditions require well below 35 mph. A defensible speed is 15-20 mph with your foot covering the brake. At 20 mph you travel about 29 feet per second; at 35 mph about 51 feet per second. The difference matters when a child appears from behind the minivan. Treat 25 as a ceiling if the zone were active; conditions may require less.
2. The minivan in the opposite lane is stopped before the crosswalk. May you proceed? What if the crossing guard lowers her paddle and steps into the street?
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A vehicle stopped at a marked crosswalk is a strong cue that a pedestrian is present or about to enter. You may not assume the minivan is simply waiting to turn. Slow or stop and look beyond it; do not pass a vehicle stopped at a crosswalk if doing so would endanger a pedestrian. If the crossing guard lowers her paddle and steps into the street, you must stop and remain stopped until she and the children clear your path. Even if she stays at the curb, children in the crosswalk have the right-of-way. Proceed only when you can see the crosswalk is clear and it is safe; the guard's presence is a traffic control cue, not decoration.
3. The ball rolls into your lane from between parked cars. What do you do, and why is 34 mph a problem here?
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Treat a ball as a warning that a child may follow. Brake straight; do not swerve into the oncoming lane or toward parked cars. Stop if you can, and scan the gaps between parked cars. At 34 mph you cover about 50 feet per second. If the ball appears 60 feet ahead, you have about 1.2 seconds before reaching it, which is not enough time to react to a child who follows. That is why 34 mph is inappropriate even though the beacons are off: the sight-line blockage and the ball reduce your available reaction and stopping distance.