OAK PARK STUDY SESSION #8 · 5/9/2016 · CTA Evaluation – Maintenance clearance – Platform...
Transcript of OAK PARK STUDY SESSION #8 · 5/9/2016 · CTA Evaluation – Maintenance clearance – Platform...
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OAK PARK STUDY SESSION #8 MAY 2016
CORRIDOR ROW EVALUATION SUSTAINABILITY
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Corridor ROW Evaluation
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Corridor Right of Way Evaluation
Process: – Blue Line Vision Study – Design, operations, & safety analysis – Coordination
GOAL: Determine optimal use of ROW
CTA CSX
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Corridor Right of Way Evaluation
No freight railroad ROW available – CSX Ongoing coordination – vertical clearance
– No raise in cross-road bridge elevations
CTA CSX CSX
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CTA Evaluation – Maintenance clearance – Platform capacity – Station safety
Corridor Right of Way Evaluation
Existing platforms
• Approx. 15 ft. • CTA Platforms • Roadway
Potential Existing CTA ROW Availability
Maintenance offset needed between I-290 and CTA
CTA 64 ft. ROW
28.7 ft. 13.8 ft.
13.5 ft.
13 ft.
I-290 Evaluation – No additional ROW – Up to 10 ft. of CTA ROW – Design & safety analysis
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Corridor Right of Way Evaluation Findings
– I-290 safety improved with/without additional ROW – Wider shoulders – 2x safety improvement – Lane widths – marginal safety difference – CTA Platforms – end loaded
Design flexibility ADA, safety, operational needs met with 5ft. to 7ft. platform widening
Recommendations – Use up to 10ft. CTA ROW for wider shoulders – Widen CTA Platforms 18’ to 21’ wide Subject to final design
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Next Steps
Continued CTA coordination Design Funding Schedules
Continue/complete CSX coordination
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Sustainability
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“Triple Bottom Line” – Considers 3 Principles
What is Sustainability?
Environmental
Social Economic
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Avoid, minimize, mitigate Stakeholder engagement Robust technical evaluation
– Environmental Impact Statement – Noise / air quality sensitivity analysis
Expanded Public Spaces – Shared use path & green space: 4 ac – Additional sidewalk width: 0.9 ac – Total expanded area: 4.9 ac
Environmental
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Maintain I-290 ROW Footprint Local Opportunities:
– LED Lighting – Native plantings – Solar panels – Permeable pavements – Self-cleaning concrete
Environmental
Solar panel/LED Lighting opportunity area
Shared use trail
Wider sidewalks & pedestrian plazas
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Regional travel improvements – 56% travel time savings in managed lane
Local travel improvements. – Peak period N-S delay reduced
Harlem Ave. 81% Austin Blvd. 49%
Flooding addressed – Mainline I-290 – CTA – CSX
Productivity: $2.7 Billion in travel time savings
Economic
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Livability – Support existing communities – Offer additional travel choices
Bike & pedestrian Carpool
– Improved access to jobs – Improved access to transit – Strengthen community
connections Walkability – Complete streets Safety improvements Aesthetics
Social
Pedestrian refuge islands
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Build upon Phase I process Continued coordination & communication Design refinements & details
– Fully develop aesthetics – Erosion control and storm water design – Cost estimate refinements
Sustainability - Phase II Context
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– Reduce, re-use, recycle – Local coordination & communication – Construction specifications Equipment idling, dust control Materials sourcing Noise & vibration – monitor & minimize
– Construction jobs – Construction quality control – Reduce/minimize maintenance disruptions
Sustainability - Phase III Context