ST. LOUIS — 17 MetroBus routes in Missouri and Illinois will change starting Monday, March 17, as part of the quarterly service change.

Here's a look at which routes will undergo changes:

#4 Natural Bridge: Schedule adjustment of first morning trip to improve bus connections.

#18 Taylor: Route ends at West Florissant, no longer serves O’Fallon Park.

#21 Watson Road: Route remains on North Highway Drive, does not enter Fenton Logistics Park.

#33 Midland: Schedule adjustments to improve on-time performance.

#40 Broadway-Halls Ferry: Weekday daytime service to operate on 40-minute frequency.

#42 Sarah: Route extended to West Florissant and Pope.

#58 Chesterfield Valley: Schedule adjustments for afternoon bus trips to improve on-time performance.

#60 Shepley-Lilac: Route serves Parker Road after leaving Veterans Home, two afternoon trips added serving Veterans Home.

#73 Carondelet: Weekday schedule adjustment to add early morning trip.

#77 Village Square: Weekday schedule adjustment to add 30-minute service during afternoon rush hours.

#78 Bellefontaine: Schedule adjustments to improve on-time performance and connections with the #40.

#97 Delmar: Route to use ML King Dr. and 14th between Jefferson and Civic Center.

#13 Caseyville (IL): Schedule adjustment to add new afternoon trip.

#14 Memorial Hospital (IL): Schedule adjustments to improve on-time performance.

#15 Belleville-Shiloh (IL): Schedule adjustment and route change, will serve Lincoln and 2nd Street on Northbound trips, will only serve Central Parkway and Veterans Service Office on Southbound trips.

#16 St. Clair Square (IL): Schedule adjustments to improve bus connections.

#23 Belleville-College (IL): Schedule adjustments to improve MetroLink connections.

MetroLink and Metro Call-A-Ride services will remain unchanged.

Information for this article was provided by a press release from Metro Transit. For more information on the changes, click here.