Dear Editor, Having rerouted most of the buses on route 19 to the edge of Pemberton Heights, Capital Metro is apparently now planning to complete the isolation of Pemberton Heights from downtown by moving route 3 away from its northeast corner. Their reason for doing this is explained as increasing volumes of traffic on Lamar Boulevard. It is a strange principle that whenever more than a certain number of private vehicles want to use a bus route, the buses should be removed.