More than half of New York City buses got failing grades in a new analysis by Comptroller Brad Lander that crunched MTA data on speeds, on-time performance, and frequency of delays.

Buses in Manhattan were the worst in the city, with 73% receiving a D or F. Lander blamed heavy traffic that often forces buses to travel at a laughable 5 miles per hour.

“ This is our effort to help provide a report card system that helps us get out of life in the slow lane and get those buses moving faster,” Lander said in an interview. Lander has long been focused on street safety and has used his office to scrutinize bus service.

Lander’s report card arrives as bus speeds have become a key issue in the race for mayor. Democratic nominee and front-runner Zohran Mamdani has campaigned on a promise to s

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