1957-4-8 9714br/With street roped off to provide ample room for parking, these cars line Second and Adams streets as the McMinnville high school safety-economy run gets under way. First car was signaled across the starting line at about 9 a.m. with other cars leaving at approximately one-minute intervals. Helping with traffic problems were members of the city police department, the Oregon state police and the Yamhill county sheriff's office.