Dearborn County Transportation Assessment Complete ... - OKI

3.6 HORIZONTAL AND VERTICAL CURVE SUMMARYAn analysis of the vertical and horizontal curves along six selected roadways wascompleted as part of the Transportation Assessment. The six roadway analyzed werealso studied as part of the Highway Capacity Analysis; Cole Lane, State Line Road,Wilson Creek Road, Yorkridge Road, Jamison Road and North Dearborn Road. Thestandards for which the horizontal and vertical alignments were measured are includedin the example typical sections in Chapter 2 of this report. Below is a summary of theanalysis; more detailed data along with mapping is included in the Appendix of thisreport.Table 3F – Horizontal and Vertical Curve DeficienciesRoadway Horizontal Curves Vertical CurvesMinimum Radius notmetRate of Curvature notmetMin/Max GradeCriteria not metCole Lane 49% 42% 14%State Line Road 33% 72% 17%Wilson Creek Road 32% 65% 7%Yorkridge Road 33% 39% 0%Jamison Road 64% 26% 17%North Dearborn Road 42% 45% 56%As illustrated in the table above, each of the roadways studied has some degree ofdeficiency. The greatest deficiencies are found on North Dearborn Road where over halfof the curves do not meet standards. The curve deficiencies on each of the roadwaysdiffer in severity and should be analyzed individually before improvements alternativesare determined.Dearborn County Transportation Assessment Page 3-9