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Table 3 Roadway Characteristics that Demarcate IDOT Road Segments

From: The effects of roadway characteristics on farm equipment crashes: a geographic information systems approach

Change in divided roadway to non-divided roadway, or vice versa
Significant change in outside shoulder width (0.6 meters or more)
Significant change in median width (0.6 meters or more)
Change in surface type
Change in surface width
Change from two-way to one-way street, or vice versa
Section with “Y” in SPECIAL STUDY
Change in surface condition rating (two points or more)
Change in state functional classification