This relation is often true, but not always. For instance, if a driver can't see past an obstruction and needs to pull into a crosswalk to look for oncoming tr

This relation is often true, but not always. For instance, if a driver can't see past an obstruction and needs to pull into a crosswalk to look for oncoming traffic, he or she may neglect to look for a crossing pedestrian because of a prioritization of risk. Progressive traffic engineering is required to balance these competing interests and safety needs on a case-by-case basis.