An Expanded Functional Classification System for Highways and Streets (2018) / Chapter Skim
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Pages 47-65
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From page 47... ...
47 US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky C A S E S T U D Y 1
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US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 49 The roadway in this case study is a principal arterial (urban-rural)
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50 An Expanded Functional Classification System for Highways and Streets Roadway Context The following table displays milepoint segments and their context descriptions: density, land use, and setbacks. A significant spot development anomaly occurs at two places along the corridor -- where it intersects an Interstate (traveler-associated commercial services)
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US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 51 The area of development covered by this case study follows a traditional wheel-and-spoke roadway network.
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Urban Core (MP 0.0 to 0.7) Urban Core Context • Highest density (multistory and high-rise structures with integrated parking)
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US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 53 Bicyclist Accommodation: The roadway is considered a citywide connector as it draws ridership from all areas within the city and accesses downtown Lexington.
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Urban Context • High density (multistory structures with designated off-street parking) • Mixed residential and commercial uses with some institutional and other special uses • Minimum on-street parking and sidewalks with mixed setbacks This urban segment has multistory structures of residential and commercial use.
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US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 55 Bicyclist Accommodation: The roadway is considered a citywide connector and, in this case, requires a high separation.
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This segment meets the density, land use and setback criteria for a suburban context as defined by the Expanded FCS. The land use consists of primarily commercial strip and cluster development with some multifamily and single-family residential.
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US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 57 Bicyclist Accommodation: The roadway is considered a citywide connector and, in this case, requires high separation due to the higher speeds on the corridor.
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This suburban area contains some commercial/institutional areas that include health services but is predominately singlefamily residential in clusters with intersecting collector access. Driver Accommodation: According to the definitions for a suburban principal arterial, the roadway should be signed at medium speed and, given the context, a target speed of 45 mph is considered appropriate, due to the lower access spacing and increased setbacks off residential properties on this section.
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From page 58... ...
US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 59 Bicyclist Accommodation: The roadway is considered a citywide connector and, in this case, requires a high separation.
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This rural segment has the lowest density with a few isolated houses and occasional farm structures with large setbacks. Agricultural uses dominate the area but are interrupted by spot development (non-conforming use of less than one mile, accommodating Interstate traveler and regional commercial services)
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US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 61 Bicyclist Accommodation: There is no demand for bicycles and therefore no dedicated bicycle facilities are provided, though riders may make use of the wide shoulders or the travel way itself.
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This short sub-segment (less than 1 mile) within the overall rural segment has a somewhat suburban commercial context that centers on the interchange of the rural arterial with I-75.
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US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 63 Bicyclist Accommodation: There is no demand for bicycles and therefore no dedicated bicycle facilities are provided though riders may make use of the wide shoulders or the travel way itself.
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Rural Town Context • Low to medium density (singlefamily and other single-purpose structures) • Primarily commercial uses along a main street with adjacent residential uses • On-street parking and sidewalks with small setbacks This rural town (a small unincorporated village)
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From page 64... ...
US 25/US 421/KY 418; Richmond Road (10.5 miles) , Lexington, Fayette County, Kentucky 65 Overlays: There is no freight or transit demand in the area and therefore no additional considerations are needed for specific overlays.
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66 C A S E S T U D Y 2 US 150; W Broadway Avenue (0.73 mile)
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