La Cienega Blvd Final Report September 30, 2010
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Autust La Cienega Boulevard Corridor Improvement Project Evaluation of Alternatives Report Submitted by: August 31, 2010 16-J10-1602 Final Report Version A.2 DOCUMENT VERSION CONTROL Document Name Submittal Date Version No. La Cienega Boulevard Corridor Improvement Project August 31, 2010 A.1 Draft Final Report La Cienega Boulevard Corridor Improvement Project September 30, 2010 A.2 Final Report Page i Southern California Association of Governments La Cienega Boulevard Corridor Improvement Project Final Report Version A.2 TABLE OF CONTENTS Document Version Control ....................................................................................................... i Table of contents ..................................................................................................................... ii List of FIGURES ........................................................................................................................ v List of Tables........................................................................................................................... vi 1.0 Introduction .................................................................................................................. 1 1.1 PURPOSE OF THE STUDY ...................................................................................................... 1 1.2 RELATED PLANNING EFFORTS ............................................................................................... 1 1.3 PROJECT STEERING COMMITTEE ........................................................................................... 3 1.4 STUDY AREA ..................................................................................................................... 4 2.0 Existing Conditions ........................................................................................................ 7 2.1 ROADWAY DESCRIPTION ..................................................................................................... 7 2.2 FREEWAY NETWORK .......................................................................................................... 7 2.3 ARTERIAL NETWORK .......................................................................................................... 8 2.3.1 Major East/West Roadways ................................................................................. 9 2.3.2 Major North/South Roadways ............................................................................ 12 2.4 TRAFFIC OPERATIONS ....................................................................................................... 13 2.4.1 Intersection Levels Of Service .............................................................................. 13 2.4.2 Travel Times ........................................................................................................ 20 2.4.3 Non‐Motorized Transportation ........................................................................... 20 2.4.4 Driveways ............................................................................................................ 21 2.4.5 On‐Street Parking ................................................................................................ 22 2.4.6 Speed Limits ........................................................................................................ 22 2.4.7 Accident History .................................................................................................. 22 2.5 TRANSIT SERVICES ........................................................................................................... 25 2.6 UNDERGROUND UTILITIES ................................................................................................. 25 2.7 OVERHEAD UTILITIES ........................................................................................................ 25 2.8 EXISTING LAND USES ........................................................................................................ 29 2.8.1 Zoning ................................................................................................................. 29 2.8.2 Unique Uses ........................................................................................................ 32 2.8.3 Urban Design ....................................................................................................... 34 2.9 PLANNED IMPROVEMENTS ALONG THE CORRIDOR ................................................................. 38 2.9.1 City of Inglewood Traffic Improvements ............................................................. 38 2.9.2 Playa Vista Project Improvements ...................................................................... 38 2.9.3 Exposition Light Rail Project Improvements ....................................................... 38 2.9.4 9919 Jefferson Boulevard Project Improvements ............................................... 38 2.10 OTHER REGIONAL IMPROVEMENTS NEAR THE STUDY CORRIDOR ............................................... 38 2.10.1 La Tijera/I‐405 planned improvements ............................................................... 38 Page ii Southern California Association of Governments La Cienega Boulevard Corridor Improvement Project Final Report Version A.2 2.10.2 Arbor Vitae/I‐405 interchange ............................................................................ 39 2.10.3 Crenshaw/LAX Corridor LRT ................................................................................ 39 3.0 Future No Project Conditions ...................................................................................... 40 3.1 FUTURE NO PROJECT LOS ................................................................................................ 40 3.1.1 TRAFFIC FORECAST METHODOLOGY .................................................................. 40 3.1.2 YEAR 2035 NO PROJECT CONDITIONS ................................................................ 40 3.1.3 Intersection Levels of Service .............................................................................. 41 3.2 FUTURE LOCATIONS NEEDING IMPROVEMENTS ....................................................................... 45 3.2.1 La Cienega Boulevard/Venice Boulevard ............................................................ 45 3.2.2 La Cienega Boulevard/Washington Boulevard ................................................... 45 3.2.3 La Cienega Boulevard/Fairfax Avenue ................................................................ 45 3.2.4 La Cienega Boulevard/Jefferson Boulevard ........................................................ 45 3.2.5 La Cienega Boulevard/Rodeo Road ..................................................................... 45 3.2.6 La Cienega Boulevard/Stocker Street .................................................................. 46 3.2.7 La Cienega Boulevard/Fairview Boulevard ......................................................... 46 3.2.8 La Cienega Boulevard/Centinela Avenue ............................................................ 46 3.2.9 La Cienega Boulevard/Florence Avenue .............................................................. 46 3.2.10 Fairfax Avenue/Venice Boulevard ....................................................................... 46 3.2.11 Fairfax Avenue/Washington Boulevard .............................................................. 46 3.2.12 Fairfax Avenue/Adams Boulevard ....................................................................... 46 4.0 Description of Project Alternatives .............................................................................. 47 4.1 GRADE SEPARATION ALTERNATIVES .................................................................................... 47 4.1.1 La Cienega/Centinela/La Tijera ........................................................................... 47 4.1.2 La Cienega/Stocker ............................................................................................. 58 4.1.3 La Cienega/Rodeo Road ...................................................................................... 63 4.1.4 La Cienega/Jefferson ........................................................................................... 66 4.1.5 La Cienega/Fairfax .............................................................................................. 66 4.2 NON‐GRADE SEPARATION IMPROVEMENTS .......................................................................... 71 4.2.1 Intelligent Transportation Systems Improvements ............................................. 71 4.2.2 Intersection Improvements ................................................................................. 71 4.2.3 Access Control and Streetscape Improvements .................................................. 73 4.2.4 Bicycle Improvements ......................................................................................... 77 5.0 Evaluation Of Project Alternatives .............................................................................. 78 5.1 EVALUATION CRITERIA ...................................................................................................... 78 5.2 ONE SIZE DOES NOT FIT ALL ................................................................................................ 79 5.3 TRAFFIC OPERATIONS ....................................................................................................... 81 5.3.1 Intersection Levels Of Service .............................................................................. 81 5.3.2 Corridor Travel Time Savings .............................................................................