The Detroit Department of Transportation announced the department's largest service expansion in 20 years on Thursday.

According to DDOT and Detroit Mayor Mike Duggan, the expansion will add about 1,500 trips per week for customers and reduce the average wait time by the end of it in January.

The first wave of expanded service begins on Saturday, Sept. 3 when DDOT will add the first three of six new 24-hour routes across the city. Three more will be added in January, giving the city nine 24-hour routes.

There will also be five new express routes that will help connect Detroiters to the city's job centers. The commute time will be cut by up to 30 minutes in each direction. The routes include:

#95: Northeast (e Outer Dr.) to downtown

#96: West (Joy Rd.) to downtown

#92: Northwest (Grand River) to downtown

#89: Southwest (Fort, Vernor) to DMC, Wayne State and Henry Ford Hospital

#80: East (Jefferson, Lafayette) to DMC, Wayne State and Henry Ford Hospital.

DDOT will also begin Saturday-only nonstop service to Eastern Market from every city council district beginning this month. It will be called Fresh Wagon and came after a series of public meetings with DDOT.