The STM’s summer schedule starts next Monday, and the Planibus schedules were posted online today. As expected, there are many service improvements, especially to increase service outside of rush hour on weekdays (links go to PDF schedules).

The following bus routes will be extended to full-day service (meaning Monday to Friday, excluding holidays, during morning and afternoon rush hours and the time between them) at 20-minutes-or-less intervals from about 6am to about 6:30pm:

• 159 Métrobus Henri-Bourassa
• 173 Métrobus Victoria (last eastbound bus at 2:50pm)
• 199 Métrobus Lacordaire (off-peak takes a shortened route along only Lacordaire Blvd.)

The following bus routes will move to a one-direction-until-noon, another-direction-after-noon schedule, with 20-minute intervals off-peak, until about 6:30pm:

• 190 Métrobus Lachine: Eastbound departures until noon, westbound departures start at noon.
• 420 Express Notre-Dame-de-Grâce: Eastbound until noon, westbound after noon.
• 430 Express Pointe-aux-Trembles: Westbound until noon, eastbound after noon.

Other changes:

• 11 Montagne will have added service in the evenings to coincide with the opening hours of Mount Royal Park. Service will now run until midnight instead of 9pm. However, the western part of the route after 9 will go to Côte-des-Neiges and Queen Mary instead of up Ridgewood, which is kind of silly since the 166 detours up Ridgewood after 9pm. Why not just keep both on their original routes and save everyone the confusion?
• 210 John Abbott ceases to become a seasonal bus linked to John Abbott’s schedule, and gains all-day weekday status. It will have a 25-minute interval between 6:10am and 5:45pm westbound, and 6:45pm and 6:20pm eastbound. Its route will also be modified to take Sainte-Marie Rd. straight from Highway 40 instead of continuing to Morgan Rd.
• 219 Chemin Sainte-Marie loses a loop on Sainte-Marie west of Morgan Rd. to EMS Technologies near Meloche.
• 268 Trainbus Pierrefonds undergoes a radical change to both route and schedule: The route will be extended up Grenet St. to the Côte-Vertu metro station in both directions. Eastbound departures continue every half hour until 3:50pm, and westbound departures from Côte-Vertu are every half hour from 8am to 5:45pm (more frequently during the afternoon rush hour)
• 505 R-Bus Pie-IX becomes 505 Express Pie-IX, which better reflects its role not as a rush-hour reserved-lane replacement for the 139 bus, but a limited-stop express bus that acts as a second option during rush hours.
• 515 Vieux-Montréal/Vieux-Port is a new shuttle between Dorchester Square, Berri metro (and the Station Centrale bus terminal), and de la Commune St. The circular route – in both directions simultaneously – takes René-Lévesque, Peel, de la Commune and Berri/St. Denis. Departures are every 13 minutes (10 minutes during weekend afternoons, 20 minutes in the late evenings), seven days a week from 7am to 1am.

Other changes, such as the 480 on Nuns’ Island and weekend service on the 470 Express Pierrefonds, will come in September.

Did I miss something? Let me know in the comments. I haven’t found anything yet on the Old Port bus that’s supposed to come.