Analysis of information sources in references of the Wikipedia article "Road surface" in English language version.
The LHA also sponsored short concrete "Seedling Mile" object lesson roads in many locations (the first, built in the fall of 1914, was just west of Malta, Illinois). The "Seedling Miles," according to the LHA's 1924 guide, were intended "to demonstrate the desirability of this permanent type of road construction" and "crystallize public sentiment" for "further construction of the same character." Generally, the LHA worked with the Portland Cement Association to arrange donations of cement for the seeding mileage...The most famous "seedling" and one of the most talked about portions of the Lincoln Highway was the 1.3-mile "Ideal Section" between Dyer and Schererville in Lake County, Indiana. In 1920, the LHA decided to develop a model section of road that would be adequate not only for current traffic but for highway transportation over the following 2 decades. The LHA assembled 17 of the country's foremost highway experts for meetings in December 1920 and February 1921 to decide design details of the Ideal Section. They agreed on such features as: A 110-foot right-of-way; A 40-foot wide concrete pavement 10 inches thick (maximum loads of 8,000 pounds per wheel were the basis for the pavement design); Minimum radius for curves of 1,000 feet, with guardrail at all embankments; Curves superelevated (i.e., banked) for a speed of 35 miles per hour; No grade crossings or advertising signs; and A footpath for pedestrians.
... the cycle track is asphalt (...) and the lane for cars is brick ...
... the cycle track is asphalt (...) and the lane for cars is brick ...
