Dearborn County Transportation Assessment Complete ... - OKI

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To further classify the roadways in this category, three (3) sub-categories have beendeveloped based on the ADT volumes on the facilities. A list of these sub-categories islisted in Table 2A. As each sub-category serves a separate level of traffic, designcriteria has been developed separately to accommodate these differences. Forexample, a high-volume arterial’s design standards will be greater than that of a lowvolumearterial. Example typical sections and criteria for each are illustrated in Section2.3 of this report. Approximately 20% of the roadway miles in the county are classifiedas Arterials.Table 2A – Rural Arterial Sub-CategoriesSub-CategoryAverage Daily Traffic(ADT)Category I ADT < 400Category II 400 < ADT < 3,000Category III 3,000 < ADT < 5,000Category IV ADT > 5,000Collector SystemThe rural collector system generally serves intracounty travel as opposed to statewidemovements. The trips associated with a collector are predominantly shorter than thoseassociated with arterial routes. Consequently, lesser design speeds are used and thedesign standards are generally less than that of arterial routes. Collector routes provideservice to smaller communities and provide connections to the arterial system. They arecategorized as serving the more important intracounty routes. Collector roadwaysaccount for 20% of the roadway miles in the County.In order to further define the collector system the following sub-categories have beendeveloped based on the ADT volumes on the roadway.Table 2B – Rural Collector Sub-CategoriesSub-CategoryAverage Daily Traffic(ADT)Category I ADT 5,000Local RoadwaysThe local roadway system in contrast to the arterial and collector system primarilyprovides access to adjacent land and to the wider network. It serves principally shortertrips and constitutes all roadways not classified as arterials or collector roads. To furtherdesignate this category and the design parameters required a set of sub-categories hasbeen developed based on the roadway traffic volumes. Over half of the roadways inDearborn County are classified as local roadways. These sub-categories are presentedin Table 2C below.Dearborn County Transportation Assessment Page 2-3
Table 2C – Local Roadway Sub-CategoriesSub-CategoryAverage Daily Traffic(ADT)Category I ADT 5,000Curb & Gutter Local RoadNA(Urban Local Road)Categories I-V and the subsequent examples typical sections illustrate a local roadwaywhere ample right of way is available for drainage concerns and minimal access isrequired. In some cases, as that of a subdivision for example, right of way is limited andnumerous driveway cuts are needed. In these instances, a curb and gutter section mayserve the area more appropriately. Therefore, we have included an example curb andgutter section in the report in addition to the traditional rural designs. The examplesection, as with each other section listed, have been compiled from the IndianaDepartment of Transportation Design Manual.It is important to note that the Roadway Functional Classifications will need to becontinually reviewed and updated by the county. Functional Classifications can changeover time due to new development and changing travel patterns.Dearborn County Transportation Assessment Page 2-4
Page 1 and 2: Dearborn CountyTransportationAssess
Page 3 and 4: 5.3 TRAFFIC COUNT RECOMMENDATIONS .
Page 5 and 6: ChapterONEEXISTING CONDITIONS1.1 ST
Page 7 and 8: Figure 1-1 - Study Area MapDearborn
Page 9 and 10: DillsboroThe town of Dillsboro was
Page 11 and 12: 1.3.2 EmploymentTable 1B - Study Ar
Page 13 and 14: 1.3.3 EconomicsTotalHouseholdsMedia
Page 15 and 16: State Route 1SR 1 travels north-sou
Page 17 and 18: Figure 1-5 - 2001 Annual Average Da
Page 19 and 20: 1.4.2 Intermodal Transportation Opt
Page 21 and 22: 1.6 REVIEW OF RELATED STUDIESNumero
Page 23 and 24: to US 50. The new roadway will be a
Page 25: urban boundary will need to be upda
Page 29 and 30: Street1ST ST2ND ST3 MILE RDG3RD ST4
Page 31 and 32: StreetCategory& Sub-CategoryStreetC
Page 49 and 50: 2.3 FUNCTIONAL CLASSIFICATION EXAMP
Page 51 and 52: Dearborn County Transportation Asse
Page 66 and 67: Figure 3-1 - Pavement TypeDearborn
Page 68 and 69: Lane & Shoulder Width DeficienciesE
Page 70 and 71: Figure 3-3 - Shoulder Width Deficie
Page 72 and 73: 3.5 GUARDRAIL INVENTORYThe length a
Page 74 and 75: CHAPTERFOURSELECTED ROADWAYCAPACITY
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Table 4B - Level of Service and Vol
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the community. Before undertaking a
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ChapterFIVERECOMMENDATIONS5.1 ANALY
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Figure 5-1 - Arterial Roadways Reco
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Figure 5-3 - Local Roadways Recomme
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5.4 TYPICAL COSTSWhen planning for
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Dearborn County Transportation Asse
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Cole Ln.txtGrade adjustment factor,
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Cole Ln2.txtGrade adjustment factor
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Jamison.txtGrade adjustment factor,
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Jamison2.txtGrade adjustment factor
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N Dearborn.txtGrade adjustment fact
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N Dearborn2.txtGrade adjustment fac
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State Line Rd.txtGrade adjustment f
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State Line Rd2.txtGrade adjustment
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Wilsons Creek.txtGrade adjustment f
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Wilsons Creek2.txtGrade adjustment
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York Ridge.txtGrade adjustment fact
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York Ridge2.txtGrade adjustment fac
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Cole Lane State Line Wilson Creek Y
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Cole Ln. - Category III Rural Colle
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Curve No. PC PT PC Milepoint PT Mil
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Curve No. PVC PVT PVC Milepoint PVT
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Wilson Creek Rd. - Category IV Rura
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Curve No. PC PT PC Milepoint PT Mil
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Jamison Rd. - Category IV Rural Art
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N. Dearborn Rd. - Category II Rural
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N. Dearborn Rd. - Category II Rural
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Dearborn County Transportation Assessment Complete ... - OKI

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