Final Presentation (Intersection Improvement Project)
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This document summarizes alternatives for improving the intersection of Holbrook Campground Road and Midway Road, including stop signs or a roundabout. It analyzes existing safety and traffic issues, presents design options for a roundabout with details on geometry and lanes, compares traffic and cost estimates, and ultimately recommends a roundabout as the best solution to address sight distance, safety, congestion, and traffic flow issues in a cost-effective manner.
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This document discusses best practices in transit oriented development through six case studies: The Bridges in Calgary, Alberta; Fruitvale Village in Oakland, California; Mission Meridian Village in South Pasadena, California; and Clarendon Metro Station in Arlington, Virginia. It outlines key elements of the projects, which commonly include mixed-use and higher density development concentrated near transit stations, with densities decreasing farther out. Design guidelines aim to make the areas pedestrian-friendly while blending with surrounding neighborhoods. Common urban design themes are also outlined.
Roundabouts on the road to sustainability
Roundabouts provide environmental, economic, and safety benefits over traditional intersections. They reduce greenhouse gas emissions by decreasing idling time and promoting continuous traffic flow. Construction and maintenance costs are often lower for roundabouts which do not require traffic signals or expensive infrastructure. Multiple studies show roundabouts reduce collisions and injuries at intersections by up to 90% by lowering speeds and eliminating high-risk collision angles. Washington state is promoting roundabouts as part of its strategy to reduce transportation emissions and meet sustainability goals.
Traffic Intersection Points Of Conflict
Roundabouts are safer than traditional intersections because they reduce conflict points between vehicles. A roundabout has only 8 conflict points compared to 32 in a four-way stop intersection. Roundabouts also decrease vehicle-pedestrian conflicts by having fewer conflict points, 8, than a signalized intersection which has 16 conflict points.
Implementing Transit Oriented Development in Indian Cities - Learnings and Ch...
Implementing Transit Oriented Development in Indian Cities - Learnings and Ch...WRI Ross Center for Sustainable Cities
Transit Oriented Development (TOD) results in the creation of compact, walkable and liveable communities with access to amenities built around high quality mass transit stations. However, the discourse around TODs in India is more of a densification and value capture approach, which is necessary, but yet an incomplete conversation for the Indian context. This webinar, presented by Todd Litman, Himadri Das and Lubaina Rangwala addresses the major challenges and learnings from the ‘implementation’ of a TOD.
The webinar recording can be seen here - https://www2.gotomeeting.com/register/335456930
Related Research - http://embarqindiahub.org/reports/towards-walkable-sustainable-bengaluru-accessibility-project-indiranagar-metro-station
Related webinar - http://embarqindiahub.org/webinars/parking-effective-tool-manage-travel-demand-transit-oriented-developmentsIntersection designs ppt
This document discusses different types of road intersections and design considerations. It describes two main types of intersections - grade-separated, which use overpasses or underpasses to eliminate conflicts, and at-grade intersections. Some key intersection types are described, including diamond, cloverleaf, and directional interchanges. Design elements like capacity, traffic control, and accommodation of pedestrians and bicycles are also covered. The objective of grade-separated intersections is to eliminate conflicts while accommodating turning movements. Channelization is discussed as a way to reduce the conflict area at intersections.
Types of intersection of road and design parameters of road intersection
This document provides information about types of road intersections and design parameters. It discusses two main types of intersections: grade-separated intersections which use bridges or tunnels to separate opposing traffic, and at-grade intersections where traffic crosses at the same level. Several specific intersection designs are described such as diamond, cloverleaf, and roundabout. Key design parameters for pedestrians, bicyclists, vehicles, and traffic control are also outlined.
Lecture24
This lecture covers several topics in geometric algorithms:
- An optimal parallel algorithm for computing the 2D convex hull problem in O(n log n) time using O(n) work.
- Applications of the 2D convex hull algorithm to problems like range searching and geometric intersection finding.
- The use of techniques like sweep lines and space partitioning trees to solve higher dimensional geometric problems efficiently.
GEOMETRIC DESIGN OF HIGHWAY
The document discusses highway geometric design and its key elements. It aims to maximize safety, comfort and efficiency while minimizing costs and environmental impacts. Geometric design considers the road's alignment, cross-section, sight distances and intersections. Elements include the carriageway, shoulders, formation width, right of way, side slopes, berms and side drains. Camber and super elevation help drain water and counteract centrifugal forces on curves. Sight distance requirements like stopping sight distance ensure drivers can see far enough to stop safely.
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9/8 THUR 14:30 | TOD Toolbox :Regional & Statewide Coord. Efforts
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Planning Transit-Oriented Developments in Greenville County
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Implementing Transit Oriented Development in Indian Cities - Learnings and Ch...
Implementing Transit Oriented Development in Indian Cities - Learnings and Ch...
Types of intersection of road and design parameters of road intersection
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- 1. Holbrook Campground Road at Midway Road Intersection Improvement Project FINAL PRESENTATION JULY 27, 2016
- 2. PROJECT LOCATION Source: GIS Cherokee County
- 4. BACKGROUND • Sight distance • Midway Road stopped traffic looking left • Safety • Accident reports • Congestion
- 5. STOP SIGN ALTERNATIVE (1)
- 6. STOP SIGN ALTERNATIVE (2) • Advantages • Solves sight distance issue • Safer approach • Disadvantages • Little to no benefit for traffic
- 7. ROUNDABOUTALTERNATIVE (1) • Geometric Design • Inscribed circle • Lane widths • Entry, exit, circulatory
- 8. ROUNDABOUTALTERNATIVE (2) • Geometric Design • Horizontal curves • 346’ • 362’
- 9. ROUNDABOUT ALTERNATIVE (3) • Advantages • Solves sight distance issue • Safer approach speed • Improved intersection traffic flow and capacity • Cheaper alternative • Disadvantages • Mainline traffic
- 10. TRAFFIC Northbound Southbound Westbound 2016 AM A B A 2016 PM A A A 2036 AM C A A 2036 PM A A B
- 11. DRAINAGE
- 12. TYPICAL SECTION
- 13. UTILITIES
- 14. COST ESTIMATES • Total Project Costs • T Intersection: $ 543,748.00 • Roundabout: $ 513,585.00
- 15. FUTURE RECOMMENDATIONS • Fastest Path Analysis • Speed Control • Traffic Predictions and Trend
- 16. CONCLUSION • Safety • Sight Distance • Speed • Congestion • Traffic Flow • Traffic Capacity • Cost Effective
- 17. Thank You