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Better Site Design Part1
- 1. Better Site Design: Model Development Principles to Protect Our Streams, Lakes, and Wetlands Presented by:
- 7. Residential streets are often excessively wide, especially when blanket application of highway design criteria are used. Photo Copyright 1999, Center for Watershed Protection
- 8. Narrow residential streets reduce traffic speeds, improve safety, provide sufficient access and parking, and reduce the amount of impervious cover created. Photo Copyright 1999, Center for Watershed Protection
- 10. Traditional Streets vs. Queuing Streets Traditional Street Queuing Street
- 13. Side yard setbacks have been reduced in this development to maximize use of the street length. Photo Copyright 1999, Center for Watershed Protection
- 15. Blanket application of street design standards can create excessively wide right-of-ways. Photo Copyright 1999, Center for Watershed Protection
- 16. Rather than a small median dividing the street right-of-ways, this monumental entryway can provide open space and a more attractive street layout between right-of-ways. Photo Copyright 1999, Center for Watershed Protection
- 18. This aerial photograph emphasizes the excessive amount of impervious cover created by large cul-de-sacs. Photo Copyright 1999, Center for Watershed Protection
- 19. The amount of impervious surface created by cul-de-sacs can be reduced by creating a pervious island in the center. Photo Copyright 1999, Center for Watershed Protection
- 20. 40 FT CUL-DE-SAC W/ ISLAND 30 FT RADIUS CUL-DE-SAC T-SHAPED TURNAROUND LOOP ROAD Alternative Turnaround Options
- 22. Many conventional neighborhoods use curbs and gutters to convey stormwater runoff away from residential streets as quickly as possible. Photo Copyright 1999, Center for Watershed Protection
- 23. Copyright 1999, Center for Watershed Protection
- 24. Copyright 1999, Center for Watershed Protection
- 25. Copyright 1999, Center for Watershed Protection
- 26. This photograph is an example of an open channel. Photo Copyright 1999, Center for Watershed Protection
- 29. One of the goals of principle #6 is to avoid big, empty parking lots like this. Photo Copyright 1999, Center for Watershed Protection
- 31. The use of most of the parking spaces provided in a lot, most of the time, is one of the goals of principle #6. Photo Copyright 1999, Center for Watershed Protection
- 33. Washington D.C’s Metro system not only reduces demand for parking and highways, but also provides a more pleasant alternative for the daily commute.
- 35. Communities seldom allow smaller parking spaces that can handle compact cars, despite the fact that these smaller cars comprise 40 to 50% of all cars on the road.
- 36. Copyright 1999, Center for Watershed Protection
Editor's Notes
- The land development process has a documented impact on the quality of our watersheds. One of the best ways to mitigate these impacts is to control the way that development sites are designed. Better site design is a process by which local governments can review their zoning and ordinance codes to minimize impervious cover and promote conservation of natural areas. This presentation outlines 22 model principles for land development that focus on streets, parking lots, lot design, and conservation of natural areas in new developments.