Pedestrian Crossings (Accidents) 64. Lieut.-Colonel Lipton asked the Minister of Transport and Civil Aviation principal reasons for the increased number of serious accidents to pedestrians on zebra crossings. Mr. Molson I think it is mainly due to the fact that more people are now using the crossings. While total accidents to pedestrians have been kept proportionately well below the growth in the number of vehicles since the zebras were introduced, there has inevitably been some increase in the number of accidents on the crossings themselves.