CIRCULATION ELEMENT UPDATE

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I. INTRODUCTION/SUMMARY.......................................................................                        I-1

II. PROJECT DESCRIPTION.............................................................................                     II-1

III. ENVIRONMENTAL SETTING......................................................................                     III-1

IV. ENVIRONMENTAL IMPACT ANALYSIS.......................................................                      IV-1

A. IMPACTS FOUND TO BE LESS THAN SIGNIFICANT.....................................                      IV.A-1

B. TRANSPORTATION AND TRAFFIC.............................................................                      IV.B-1

C. AESTHETICS............................................................................................                      IV.C-1

D. AIR QUALITY..........................................................................................                      IV.D-1

E. BIOLOGICAL RESOURCES.........................................................................                      IV.E-1

F. CULTURAL RESOURCES..........................................................................                        IV.F-1

G. GEOLOGY AND SOILS.............................................................................                       IV.G-1

H. HYDROLOGY AND WATER QUALITY........................................................                       IV.H-1

I. HAZARDS AND HAZARDOUS MATERIALS..................................................                       IV.I-1

J. LAND USE...............................................................................................                       IV.J-1

K. NOISE....................................................................................................                       IV.K-1

L. POPULATION, HOUSING, AND EMPLOYMENT...........................................                        IV.L-1

V. GENERAL IMPACT CATEGORIES..............................................................                         V-1

A. SIGNIFICANT UNAVOIDABLE IMPACTS...................................................                          V-1

B. GROWTH INDUCING IMPACTS OF THE PROPOSED PROJECT....................                           V-1

C. SIGNIFICANT IRREVERSIBLE ENVIRONMENTAL CHANGES........................                           V-2

VI. ALTERNATIVES TO THE PROPOSED PROJECT.........................................                         VI-1

A. NO PROJECT ALTERNATIVE...................................................................                          VI-4

B.0.8 FAR ALTERNATIVE...............................................................................                       VI-11

C.1.0 FAR ALTERNATIVE...............................................................................                       VI-18

D.1.3 FAR ALTERNATIVE...............................................................................                       VI-25

E. ENVIRONMENTALLLY SUPERIOR ALTERNATIVE.....................................                             VI-32

VII. PREPARERS OF THE EIR AND PERSONS CONSULTED.............................                           VII-1

APPENDICES

(Under Separate Cover)

APPENDIX ANOTICE OF PREPARATION (NOP) AND INITIAL STUDY

APPENDIX BRESPONSES TO THE NOP

APPENDIX CPROPOSED CIRCULATION ELEMENT AND TRAFFIC ANALYSIS STUDY

APPENDIX DAIR QUALITY WORKSHEETS

APPENDIX EBIOLOGICAL RESOURCES

APPENDIX FNOISE WORKSHEETS

APPENDIX GVACANT LAND SURVEY

APPENDIX HLIST OF POTENTIALLY RECYCLED PARCELS

LIST OF FIGURES

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II-1 Location of Proposed Changes in Roadway Designations and Roadway Configurations..            II-9

III-1 Regional Vicinity Map...........................................................................................            III-2

III-2 Project Location Map............................................................................................            III-3

IV.B-1 Existing Roadway Network.................................................................................            IV.B-2

IV.B-2 Study Intersection Locations..............................................................................             IV.B-7

IV.B-3 Significantly Impacted Intersections...................................................................             IV.B-21

IV.D-1 South Coast Air Basin.....................................................................................              IV.D-3

IV.D-2 Air Monitoring Areas......................................................................................              IV.D-11

IV.G-1 Soil Classification..........................................................................................               IV.G-3

IV.G-2 Liquefaction Potential....................................................................................               IV.G-4

IV.I-1 Contaminated Sites........................................................................................               IV.I-3

IV.K-1 Roadway Noise Analysis Locations..................................................................               IV.K-4

LIST OF TABLES

Table Page

I-1 Summary of Environmental Impacts and Mitigation Measures..............................                  I-13

IV.B-1 Level of Service as a Function of ICU Values....................................................               IV.B-5

IV.B-2 Intersection Capacity Utilization (ICU) and Level of Service (LOS) – Existing (2003)..          IV.B-8

IV.B-3 Intersection Capacity Utilization (ICU) and Level of Service (LOS) – Future with
Circulation Element Update (2025)....................................................................                       IV.B-18

IV.D-1 State and National Ambient Air Quality Standards.............................................              IV.D-6

IV.D-22000 to 2002 Criteria Pollutant Violations – Southwest Coastal LA County
Monitoring Station...................................................................                                               IV.D-10

IV.D-3 Existing (2003) Carbon Monoxide (CO) Concentrations (parts per million)..........                IV.D-13

IV.D-4 SCAQMD Daily Construction and Operational Emissions Thresholds....................               IV.D-15

IV.D-5 Estimated Daily Construction Emissions for a Single Prototypical
Intersection Improvement (pounds per day)......................................................                        IV.D-16

IV.D-6 Estimated Daily Construction Emissions for the Prototypical Construction
Scenario (pounds per day)..............................................................................                         IV.D-17

IV.D-7 SCAQMD Rule 403 – Track-Out Control Options.................................................             IV.D-18

IV.D-8 Future (2025) Carbon Monoxide (CO) Concentrations (parts per million)...............             IV.D-19

IV.F-1 Intersections with Identified Improvements under the Proposed Circulation Element
Update...............................................................................................................                    IV.F-6

IV.G-1 Intersections with Identified Improvements Located in Areas with Expansive Soils.....           IV.G-7

IV.I-1 Contaminated Sites Within the City of El Segundo..................................................            IV.I-2

IV.J-1 Comparison of Proposed Circulation Element Update Characteristics to RCPG
Policies..............................................................................................................                     IV.J-9

IV.K-1 Existing Community Equivalent Noise Levels (CNEL)..............................................            IV.K-3

IV.K-2 Noise Level Ranges of Typical Construction Equipment..........................................             IV.K-7

IV.K-3 Outdoor Construction Noise Levels......................................................................             IV.K-7

IV.K-4 Future Estimated Community Equivalent Noise Levels Sound Level at 50 feet
(dBA, CNEL).....................................................................................................                       IV.K-8

IV.L-1 Population, Housing and Employment Forecasts for the City of El Segundo and
South Bay Cities Subregion................................................................................                        IV.L-3

VI-1 Intersection Capacity Utilization (ICU) and Level of Service (LOS) – Future
No Project with Adopted Circulation Element Roadway Network (2025).....................                     VI-7

VI-2 Intersection Capacity Utilization (ICU) and Level of Service (LOS) – Future Under
FAR 0.8 Alternative (2025)...................................................................................                      VI-12

VI-3 Intersection Capacity Utilization (ICU) and Level of Service (LOS) – Future Under
FAR 1.0 Alternative (2025)...................................................................................                       VI-20

VI-4 Intersection Capacity Utilization (ICU) and Level of Service (LOS) – Future Under
FAR 1.3 Alternative (2025)..................................................................................                        VI-26