Contraflow Lanes (3).ppt · Appendix A4-6. 6/25/2010 May 10, 2010 Contraflow Lanes Colorado Blvd WB...
Transcript of Contraflow Lanes (3).ppt · Appendix A4-6. 6/25/2010 May 10, 2010 Contraflow Lanes Colorado Blvd WB...
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Contraflow Lanes
Geometric Evaluation
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Contraflow Lanes
Considerations
• Typical Sections
• Crossovers
• Other Elements
Appendix A4-1
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Contraflow Lanes
Typical Sections – RoadwayI-70 Westbound
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Contraflow Lanes
Typical Sections – TunnelView Looking West
Appendix A4-2
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Contraflow Lanes
West of Empire Junction
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Contraflow Lanes
Empire Junction Crossover
Appendix A4-3
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Contraflow Lanes
Floyd Hill CrossoverNormal Interstate Operation
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Floyd Hill CrossoverDuring Contraflow Operation
Appendix A4-4
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Contraflow Lanes
Floyd Hill Crossover
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Contraflow Lanes
Other Considerations
• Narrow Locations
– Bridges
– Twin Tunnels
– Can be Addressed
• Blunt Ends
– 6 Identified
– Correctable
• Headlight Glare
• Rumble Strips
Appendix A4-5
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Critical IssueIdaho Spring Area Snow Removal View WB
• Safety Issue– How to plow Contraflow Lane before moving back to
median
• Solutions– Don’t utilize Contraflow Lane when snowing
– Plow into EB traffic and have CDOT plow follow plow clearing Contraflow lane
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Contraflow Lanes
State Highway 103 Overpass
Appendix A4-6
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Colorado Blvd WB Entrance Ramp
Appendix A4-7