Oh , my goodness . The traffic is crawling .   I think there is an accident ahead .   We are now running late .   I know . Why don't we take a different route ?   Let me check and look at the map . Yes , there is an exit three quarters of a mile ahead . We ’ ll exit Market Street , head west , then get on the Pennsylvania Freeway .   Ok , let's do that , even though we may have to take a longer way . 