INTRODUCTION This document contains a list of major roadways located in Hillsborough County. Each roadway segment in the unincorporated area is part of the "regulated roadway system" used by Hillsborough County in the implementation of its Concurrency Management System. The inventory is designed to serve the Concurrency Management System, Capital Improvement Program and other planning purposes. Roadways listed include those in the unincorporated areas of Hillsborough County, and those segments in the City of Tampa that are designated County Roads or are part of the State Road System. The following description of the new format for the Hillsborough County Roadway Inventory and Level of Service Report is designed to explain how the data has been prepared and the changes from the previous reports. This document is being distributed to the public for the first time. Questions with interpreting the data or questions with the data itself, should be directed to our office at 272-5920. The new Inventory reflects roadway segments that have been added to the original list of Regulated Roadways. The Comprehensive Plan identifies all collectors and arterials as regulated roadways. Historical traffic counts are provided in Appendix A and B. These historical traffic count spreadsheets list the segments developed for the original Inventory, and correspond for the most part to the segments listed in the new inventory. The purpose of this document is to provide a description of the traffic conditions as they exist as of December, 1998. Hillsborough County reserves the right to apply concurrency rules to any roads in the County, especially new roads, which meet the criteria for collector or arterial.
PROCEDURES The capacities (maximum service flow rates) and Levels of Service shown in the listing are based on the J 994 Higbway Capacity Mannal ! Ipdate procedures as implemented by the Florida Department of Transportation (FDOT), and its Generalized Level of Service, Maximum Volume tables released in 1995. An updated report will be forthcoming reflecting the recently issued 1998 Generalized Level of Service tables and HCS manual. Levels of Service are qualitative measures describing operational conditions of highways. Six Levels of Service are defined for each facility type, and are given designations ranging from "A" (the best) to "F" (the worst). Levels of Service indicate quality of flow measured by a scale of driver satisfaction.
Level of Service A represents free flow. Individual users are virtually unaffected by the presence of others in the traffic stream.
Level of Service B is in the range ofstable flow, but the presence of other users in the traffic stream begins to be noticeable.
Level of Service C is also in the range offree flow, but marks the beginning of the range in which the operation of individual users becomes significantly affected by the presence of others.
Level of Service D represents high-density but stable flow. Speed and freedom to maneuver are severely restricted.
Level of Service E represents operating conditions at or near the capacity level. All speeds are reduced to a low, but relatively uniform value. Level of Service F is used to define forced or breakdown flow. This condition exists whenever the amount of traffic approaching a point exceeds the amount which can traverse the point.
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