What's Big, Yellow And Humiliating?; Full Lot at Greenwich High Means New Reality: The Bus
Increased enrollment, coupled with more students driving to school, spells dearth of parking spaces at Greenwich High School; beginning next fall, juniors will no longer have parking privileges, and status of upperclassmen has new demarcation; in years past, having car was status symbol, but in today's tight market, parking permits trump even those; more students will be forced to rely on dreaded school bus; photo (M)