Draft Purpose and Need Technical Report
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Rock Settling Pond King Dulin Highway 365 530 30 Interstat Pye Interstate Bla e 530 ckfoot 65th Interstate 53 Church Rogers 0 1,500 3,000 4,500 6,000 Harper 338 Feet Allied 0 Dixon Wilbern ates G Purpose & Need Technical Report CA0602 TABLE OF CONTENTS 1.0 INTRODUCTION ............................................................................................... 1 2.0 BACKGROUND ................................................................................................. 1 2.1 I-30 PEL Study Area ...................................................................................... 1 2.2 Previous Studies and Planning Context ......................................................... 1 2.3 Regional Planning Context ............................................................................ 1 3.0 NEED FOR IMPROVEMENTS IN THE PEL STUDY AREA .............................. 2 3.1 Traffic Congestion .......................................................................................... 2 3.1.1 Traffic Demand ......................................................................................... 2 3.1.2 Capacity and Traffic Operations ............................................................... 3 3.1.3 Causes of Congestion .............................................................................. 4 3.1.4 Traffic Analysis ......................................................................................... 4 3.1.5 Roadway Users ........................................................................................ 6 3.2 Roadway Safety ............................................................................................. 6 3.2.1 Existing Conditions ................................................................................... 6 3.2.2 Future No-Action Conditions .................................................................. 10 3.3 Structural and Functional Roadway Deficiencies ......................................... 11 3.3.1 Structural Roadway Deficiencies ............................................................ 11 3.3.2 Functional Roadway Deficiencies ........................................................... 12 3.4 Navigational Safety ...................................................................................... 12 3.5 Structural and Functional Bridge Deficiencies ............................................. 14 3.5.1 Structural Bridge Deficiencies ................................................................ 14 3.5.2 Functional Bridge Deficiencies ............................................................... 14 3.6 Summary of Needs ...................................................................................... 14 4.0 PURPOSE AND STUDY GOALS AND OBJECTIVES ..................................... 15 4.1 Purpos12 e ....................................................................................................... 15 4.2 Study Goals/Objectives ................................................................................ 15 LIST OF TABLES Table 1. LOS Designations ........................................................................................... 4 Table 2. I-30/I-40 Estimated Daily Trip Characteristics in 2040 ..................................... 6 Table 3. Crash Numbers and Rates along I-30 ............................................................. 7 DRAFT ______________________________________________________________________ i Purpose & Need Technical Report CA0602 LIST OF FIGURES Figure 1. I-30/I-40 Annual Average Daily Traffic by Location (2010-2013) ................... 3 Figure 2. Comparison of Existing and Future No-Action LOS for I-30/I-40 .................... 5 Figure 3. Numbers of Crashes on I-30/I-40 Mainline in 2012 ........................................ 8 Figure 4. I-30/I-40 Main Lane Crash Types (2010-2012) .............................................. 9 Figure 5. I-30/I-40 Main Lane KA Crash Types (2010-2012) ........................................ 9 Figure 6. I-30/I-40 Main Lane Crash Severity (2010-2012) ........................................... 9 Figure 7. I-30/I-40 Main Lane Crash Types - Arkansas River Bridge to 19th Street (2010-2012) ................................................................................................. 10 Figure 8. I-30/I-40 Main Lane KA Crash Types - Arkansas River Bridge to 19th Street (2010-2012) ................................................................................................. 10 Figure 9. Existing and Projected Number of Annual Crashes along I-30/I-40 ............. 11 Figure 10. Reduced Horizontal Clearance and Pier Obstruction for I-30 Bridge ........... 13 ATTACHMENTS Attachment A Background Information Attachment B Traffic Data Attachment C Roadway Data Attachment D Bridge Data Attachment E References DRAFT ______________________________________________________________________ ii Purpose & Need Technical Report CA0602 1 1.0 INTRODUCTION 2 0FThis document provides background information and data to support the purpose and 3 need for improvements along I-30 from I-530 to I-40 and along I-40 from the I-30/I-40 4 interchange to United States Highway 67/167 (Hwy. 67/167). Data and analysis from 5 previous studies, as well as an assessment of current and future conditions, are 6 provided to assist in defining the key problems and potential solutions to address future 7 mobility needs within the study area. The purpose and need discussed in this document 8 is part of the Planning and Environmental Linkages (PEL) Study process. 9 10 2.0 BACKGROUND 11 12 2.1 I-30 PEL Study Area 13 The proposed I-30 PEL study area2F is located in central Arkansas, and stretches 14 approximately 6.7 miles through Little Rock and North Little Rock. The study area 15 begins at I-530 in the south, extends to I-40 in the north, and then east along I-40 to its 16 interchange with Hwy. 67/167 in North Little Rock, as detailed in Attachment A-1. 17 18 2.2 Previous Studies and Planning Context 19 A number of studies have been completed that provide background on the study area. 20 The most recent and relevant to the study area is the Central Arkansas Regional 21 Transportation Study Areawide Freeway Study, Phase 1 Arkansas River Crossing 22 Study from 2003. Other past relevant studies, summarized in Attachment A-2, include: 23 24 Central Arkansas Regional Transportation Study (CARTS), Areawide Freeway 25 Study, Phase 1 Arkansas River Crossing Study Final Report and Phase 2 26 Areawide Study, 2003; 27 River Rail Airport Study, Phase 2 Final Report, 2011; 28 I-630 Fixed Guideway