Yellow brick road
The actual road is believed to be one in Peekskill, New York, where L. Frank Baum attended Peekskill Military Academy. According to a local legend, the Yellow Brick Road was derived from a road paved with yellow bricks near Holland, Michigan, where Baum spent summers. Ithaca, New York, also makes a claim for being Frank Baum's inspiration. He opened a road tour of his musical, The Maid of Arran, in Ithaca, and he met his future wife Maud Gage Baum while she was attending Cornell University. At the time, yellow bricks paved local roads. Yellow brick roads can also be found in Aberdeen, South Dakota; Albany, New York; Rossville (Baltimore County), Maryland; Montclair, New Jersey (Parkhurst Place and Afterglow Way); Bronxville, New York (on Prescott and Valley roads); Chicago, Illinois; Liberal, Kansas; Sedan, Kansas and Chittenango, New York, as well as a school in Abington, Pennsylvania, and abroad in Sofia, Bulgaria.
Kansas Turnpike
Given Oklahoma's plans to build a turnpike north from Oklahoma City to the Kansas state line, and taking into account traffic flow maps prepared by the highway department, a preliminary route was chosen connecting the proposed Oklahoma turnpike to Kansas City via Wichita and Topeka. A second route extending from Topeka to Salina, and further west to the Colorado state line (the modern-day I-70 corridor) was also studied. Over 173,000 drivers were surveyed to determine how many of them would be willing to use the two proposed routes in order to establish their profitability. While the western Kansas route was determined not to be feasible, the Oklahoma–Kansas City route was projected to generate a total revenue of $9 million in 1957 (about $ in dollars). After considering a number of different alignments, including one bypassing Topeka via the present route of I-35, the state decided on an "airline" route between Wichita and Topeka. From Wichita south, the turnpike was to parallel U.S. Route 81, continuing into Oklahoma; the interchange with U.S. Route 166 at South Haven was included to provide an outlet if Oklahoma lagged in its construction. The turnpike was to parallel U.S. Route 40 from Topeka to Kansas City. The Kansas City end was set at 18th Street and Muncie Boulevard, which was to be extended and upgraded to a freeway (the Muncie Expressway) to the Intercity Viaduct by the state.