THIS PROJECT DEVELOPED A MANUAL TO BE USED BY TRANSPORTATION OFFICERS FOR COMPUTING SCHOOL BUS ROUTES. MATHEMATICAL TECHNIQUES WERE REVIEWED AND A COMPREHENSIVE STUDY MADE OF CRITERIA ELICITED FROM LITERATURE AND INTERVIEWS. QUESTIONNAIRES WERE MAILED TO SCHOOL AUTHORITIES TO RANK THE VARIOUS FACTORS INVOLVED. A COMPUTER PROGRAM WAS DEVELOPED FOR OPTIMAL ROUTING SERVICES. SOME OF THE GENERAL CONCLUSIONS REACHED WERE--(1) THE GREATER THE POPULATION DENSITY, THE MORE EFFICIENT THE PROGRAM UTILIZATION, (2) ROUTES CAN BE DESIGNED THAT ARE SHORTER, AND (3) BECAUSE OF VARYING CONDITIONS, NO TIME ESTIMATES WERE GIVEN. CHANGES ARE NOW IN PROGRESS ON THE SYMBOLIC PROGRAMING SYSTEM (SPS) FOR FURTHER EXTENSION OF EFFICIENT SERVICE. (RS)