Four ART bus routes will begin using different schedules or routes as of Monday.

Generally speaking, the changes to ART 42, 52, 75 and 77 will be to add additional hours of service or to tweak existing schedules by a few minutes. However, one stop is being removed in Clarendon for two of the routes.

For more information and for full ART bus schedules, log on to the Arlington Transit website. Details for the changes starting on Monday are as follows:

• ART 42 — Additional times are added on weekdays so buses run more frequently during the morning and evening rush hours. Saturday schedules do not change. Buses will no longer travel down N. Highland St in Clarendon, but will instead use N. Garfield St. The stop at N. Highland St and Clarendon Blvd will no longer be in service.
• ART 52 — Slight time adjustments will be made to help the buses run more efficiently. The schedule will help buses better coincide with the Yorktown High School bell schedule. Students should be able to use the bus to get to and from school more easily.
• ART 75 — Additional midday and evening service will be added. Buses will now run weekdays until after 10:00 p.m. The changes will also help buses better coincide with the Wakefield High School bell schedule.
• ART 77 — Saturday service will be added, starting at 7:00 a.m. and going until 11:54 p.m. The change should make it more convenient for riders to visit Shirlington on the weekends. Slight changes will also be made to the weekday schedule to make buses run more efficiently.  Buses will no longer travel down N. Highland St in Clarendon, but will instead use N. Garfield St. The stop at N. Highland St and Clarendon Blvd will no longer be in service.