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sr 77/oracle road multimodal corridor profile study final report - Pima ...

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7. INVESTMENT OPTIONS 7-1<br />

7.1 SUMMARY OF INVESTMENT OPTIONS TO ADDRESS CAPACITY<br />

DEFICIENCIES 7-1<br />

7.1.1 Development of an Alternative High-Capacity Corridor 7-1<br />

7.1.2 Summary of Capacity Improvement Options Along SR <strong>77</strong> 7-2<br />

7.1.3 Micro-Simulation Analysis of GSI Alternatives 7-5<br />

7.1.4 Right-of-Way Implications and Costs for Widening SR <strong>77</strong> to Eight Lanes 7-8<br />

7.2 SUMMARY OF INVESTMENT OPTIONS TO ADDRESS NON-CAPACITY<br />

DEFICIENCIES 7-11<br />

7.2.1 Roadway Lighting Investment Options 7-11<br />

7.2.2 Pedestrian Investment Options 7-15<br />

7.2.3 Bicycle Facility Investment Options 7-15<br />

7.2.4 Transit Investment Options 7-18<br />

7.2.5 Bridge and Drainage Structures Investment Options 7-19<br />

7.2.6 ITS Investment Options 7-19<br />

7.2.7 Investment Options to Address AASHTO Design Deficiencies 7-23<br />

7.2.8 Access Control Investment Options 7-23<br />

7.2.9 Other Improvements 7-27<br />

8. OPPORTUNITIES AND CONSTRAINTS 8-1<br />

8.1 FINANCIAL OPPORTUNITIES AND CONSTRAINTS 8-1<br />

8.2 RIGHT-OF-WAY OPPORTUNITIES AND CONSTRAINTS 8-1<br />

8.3 ENVIRONMENTAL ISSUES AND CONSTRAINTS 8-6<br />

8.3.1 Terrain 8-6<br />

8.3.2 Sensitive Species and Habitats 8-6<br />

8.3.3 Cultural Resources 8-8<br />

8.3.4 Air and Noise Quality 8-9<br />

8.3.5 Title VI Issues 8-9<br />

8.3.6 <strong>Pima</strong> County Environmentally Sensitive Roadway Guidelines 8-10<br />

8.3.7 Pusch Ridge Wilderness Area 8-11<br />

8.3.8 Drainage Considerations 8-11<br />

8.3.9 Summary of Environmental Resources Issues 8-13<br />

SR <strong>77</strong>/Oracle Road Multimodal Corridor Profile Study May 2007<br />

Final Report<br />

Page vii

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