Dearborn County Transportation Assessment Complete ... - OKI

Lane & Shoulder Width DeficienciesExample typical sections for each roadway functional classification are listed in Chapter2 of this report. Those standards were compared to the existing conditions of thefacilities in Dearborn County to determine whether a lane or shoulder width deficiencyexisted. Tables 3C and 3D and Figures 3-2 and 3-3 illustrate the results of the analysis.As can be seen in the tables and figures, three-quarters of the roadway miles in thecounty have a lane width deficiency. It is important to note that the severity of thedeficiencies does vary from less than one foot to more than five feet. Table 3.5illustrates that almost all of the roadway miles, 92%, have a shoulder width deficiency.This is not surprising given that most of the roadways in the county evolved over timefrom farm paths to paved roadways.Table 3C – Lane WidthCondition% of Roadway Milesin CountyAcceptable 25%Deficient 75%Table 3D – Shoulder WidthCondition% of Roadway Milesin CountyAcceptable 8%Deficient 92%3.4 SIGN INVENTORYA sign inventory was completed for the entire county. This information was needed todevelop a baseline and to help identify future maintenance needs in the future.Contained in Table 3E are the results of the inventory; Figure 3-4 illustrates the locationsof the signage.Table 3E – Sign InventorySign TypeNumber in CountyParking 63Speed Limit 592Stop 657Street Name 932Yield 47Other3,650(Driver Information/Warning Signs)TOTAL 5,941Dearborn County Transportation Assessment Page 3-4