How these routes evolved into routes operated by SMART, is covered at the Route History page.
Wyandotte - Local bus routes were introduced in Wyandotte in 1928 by People's Motor Coach Co., and in 1931 by Wyandotte Loop Bus Co. In 1964, Great Lakes Transit acquired Wyandotte Loop Bus Co. SMART bus routes presently serving Wyandotte are more of a regional nature.
Lincoln Park Coach Line - The first bus service along Fort Street was introduced in 1925 within Lincoln Park by Lincoln Park Coach Line, evolving from a jitney operation introduced in 1921. Lincoln Park Coach Line ceased operations in 1927. Bus service resumed in 1929, operated by a new company, Lincoln Park Bus Co. In 1933, Lincoln Park Bus Co. was acquired by Dearborn Coach Co., operating it as a subsidiary Lincoln Park Coach Co.
Renne Motor Transit Co. - The first local bus service along Michigan Ave. was introduced by Renne Motor Transit Co., operating from Miller Rd. to Wayne. Renne Motor Transit Co. was acquired by Detroit Motorbus Co. in 1925.
Dearborn Local Service - First existed in the early 1920's, operated by Rayworth's Bus Line. In 1927, Detroit Motorbus Co. began operating several local routes within Dearborn. Some of these routes continued to exist under Intertown Suburban Lines and Metropolitan Transit. A group of local routes in the east portion of Dearborn, Intertown and Metropolitan route numbers 21-22-23, existed for a while under SEMTA as route 298. But the route was eventually discontinued. And a few local routes in the west portion of Dearborn, Intertown and Metropolitan route numbers 10-11-12, evolved to segments of SEMTA routes of a more regional nature.
Northville - Operated via Seven Mile Rd. Introduced by Northville & Milford Coach Co., acquired in 1925 by Detroit Motorbus Co., and sold during 1930's to George Hind. Route subsequently operated by Northville Bus Line, and later Northville Coach Line. Acquired in 1968 by Short Way Lines, in order that Short Way Lines could gain territory for its charter business. Segment was incorporated into a Short Way route between Ann Arbor and Pontiac. Route operated via Telegraph Rd. between Seven Mile Rd. and Pontiac. Service on Seven Mile Rd. acquired by SEMTA in 1976, becoming SEMTA route 350, later SMART route 315, discontinued in 2006. Service on Telegraph Rd. discontinued, although later reestablished by SMART as route 275.
Star Motor Coach Line - The first bus service along Woodward was introduced in 1922 by five separate operators between Highland Park and Pontiac. In 1923, Star Motor Coach Line became the operator of the service. Star Motor Coach Line was acquired by Detroit United Railway as a subsidiary in 1924.
Berkley - Two bus companies operated routes which evolved into branches of the Woodward service, branching west. The Berkley Motorbus Co. and the Public Service Transit Co. were acquired by Star Motor Coach Line in 1926 and 1927, respectively. Both bus routes diverged from Woodward at Catalpa Dr., operating west to Coolidge Hwy., then either south or north to either Eleven Mile Rd. or Twelve Mile Rd., then west over either road. Those routes evolved to SEMTA route 470. Route was eventually discontinued, and under SMART, service on Twelve Mile Rd. was later restored.
B&B Bus Co. - Introduced by B&B Bus Co. on Main St., acquired by Detroit United Railway subsidiary Star Motor Coach Line in 1927. Evolved to SEMTA and SMART service.
Pontiac - Local bus service introduced in 1925 by various independent operators, acquired in 1927 by Detroit United Railway subsidiary People's Motor Coach. Last local streetcars replaced with buses in 1931, and in 1932 all bus service discontinued by People's Motor Coach successor Eastern Michigan Motorbuses. Martin Lines then tried operating local bus service there for one week, but gave up, and Pontiac Transportation Co. was soon formed to provide local transit service. In 1936, bus service acquired by Pontiac City Lines, a subsidiary of newly formed National City Lines. In 1960, Pontiac City Lines discontinued service, and some service was provided briefly by The Bee Line Inc., until American Transit Corp. formed Pontiac Transit Corp., to be subsidized by city. In 1971, Pontiac Transit Corp. acquired by city. And from 1973 to 1974, operated for SEMTA under contract by Great Lakes Transit, until Great Lakes Transit was acquired by SEMTA. Under SEMTA and SMART, routes numbered in the 750's.
Royal Oak Big Beaver & Rochester Bus Co. - The first bus service along John R St. was introduced in 1922 by Royal Oak Big Beaver & Rochester Bus Co., operating north of Highland Park. Royal Oak Big Beaver & Rochester Bus Co. was acquired by Detroit Motorbus Co. in 1925, and sold to Martin Lines in 1927.
Wolverine Transit Co. - The first bus service along Gratiot was introduced in 1922 by Wolverine Transit Co., operating from Detroit city limits to Mt. Clemens. Wolverine Transit Co. was acquired by Detroit United Railway as a subsidiary in 1924.
Grosse Pointe - The first bus service along East Jefferson was introduced in 1924 within Grosse Pointe by the Grosse Pointe Bus Co. In 1924, the Grosse Pointe Bus Co. was acquired by Detroit Motorbus Co., which later became Lake Shore Coach Lines.
St. Clair Shores - Independent Buses began operating in 1922 on Mack Ave. That company failed in 1925, and the buses were repossessed by manufacturer Reo, which continued to operate the line. In 1926, the Mack Avenue Bus Line began operating bus service, but that company failed after 5 months. Finally, Village Utilities, Inc., began operating in 1927. The route operated via Jefferson within St. Clair Shores, and via Mack south of St. Clair Shores to connect with Mack streetcar in Detroit, and then with Detroit Motorbus Co. Kercheval route. And in 1929, that route was sold to Detroit Motorbus Co., and combined into the Kercheval route. SMART continues to operate service using Kercheval.