Better Site Design Part1

25 %
75 %
Information about Better Site Design Part1

Published on March 17, 2008

Author: watershedprotection

Source: slideshare.net

Description

This is the first half of an extensive outline of all 22 model land development principles

Better Site Design: Model Development Principles to Protect Our Streams, Lakes, and Wetlands Presented by:

Model Development Principles Three Categories of Development: Residential Streets and Parking Lots Lot Development Conservation of Natural Areas

Three Categories of Development:

Residential Streets and Parking Lots

Lot Development

Conservation of Natural Areas

Model Development Principles Need to be adapted to meet unique conditions in your community Will not apply to all developments Act as benchmarks, but are not cookie cutters Do not address infill and redevelopment Need to be consistent with environmental and watershed plans

Need to be adapted to meet unique conditions in your community

Will not apply to all developments

Act as benchmarks, but are not cookie cutters

Do not address infill and redevelopment

Need to be consistent with environmental and watershed plans

Residential Streets and Parking Lots 1. Street Width 2. Street Length 3. Right-of-Way Width 4. Cul-de-Sacs 5. Vegetated Open Channels 6. Parking Ratios 7. Parking Codes 8. Parking Lot Design 9. Structured Parking 10. Parking Lot Runoff

1. Street Width

2. Street Length

3. Right-of-Way Width

4. Cul-de-Sacs

5. Vegetated Open

Channels

6. Parking Ratios

7. Parking Codes

8. Parking Lot Design

9. Structured Parking

10. Parking Lot Runoff

 

PRINCIPLE NO. 1 Reduce Residential Street Width Design residential streets for minimum pavement width needed to support travel lanes; on-street parking; and emergency, maintenance, and service vehicle access. Street widths should be based on traffic volume.

Design residential streets for minimum pavement width needed to support travel lanes; on-street parking; and emergency, maintenance, and service vehicle access.

Street widths should be based on traffic volume.

Residential streets are often excessively wide, especially when blanket application of highway design criteria are used. Photo Copyright 1999, Center for Watershed Protection

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

 

Traditional Streets vs. Queuing Streets Traditional Street Queuing Street

PRINCIPLE NO. 2 Reduce Residential Street Length Reduce the total length of residential streets by examining alternative layouts that increase the number of homes served per unit length.

Reduce the total length of residential streets by examining alternative layouts that increase the number of homes served per unit length.

Alternative Road Patterns

Side yard setbacks have been reduced in this development to maximize use of the street length. Photo Copyright 1999, Center for Watershed Protection

PRINCIPLE NO. 3 Reduce Residential Right-of-Way Widths Residential street right-of-way widths should be the minimum to accommodate the travel-way, the sidewalk, and open channels . Utilities and storm drains should be located within the pavement section of the right-of-way.

Residential street right-of-way widths should be the minimum to accommodate the travel-way, the sidewalk, and open channels .

Utilities and storm drains should be located within the pavement section of the right-of-way.

Blanket application of street design standards can create excessively wide right-of-ways. Photo Copyright 1999, Center for Watershed Protection

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

PRINCIPLE NO. 4 Minimize Cul-de-Sacs Minimize the number of residential street cul-de-sacs and incorporate landscaped areas to reduce their impervious cover. The radius should be the minimum needed for emergency and maintenance vehicles. Alternative turnarounds should be considered.

Minimize the number of residential street cul-de-sacs and incorporate landscaped areas to reduce their impervious cover.

The radius should be the minimum needed for emergency and maintenance vehicles.

Alternative turnarounds should be considered.

This aerial photograph emphasizes the excessive amount of impervious cover created by large cul-de-sacs. Photo Copyright 1999, Center for Watershed Protection

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

40 FT CUL-DE-SAC W/ ISLAND 30 FT RADIUS CUL-DE-SAC T-SHAPED TURNAROUND LOOP ROAD Alternative Turnaround Options

PRINCIPLE NO. 5 Use Vegetated Open Channels Where density, topography, soils, and slope permit, vegetated open channels should be used in the street right-of-way to convey and treat stormwater runoff.

Where density, topography, soils, and slope permit, vegetated open channels should be used in the street right-of-way to convey and treat stormwater runoff.

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

Copyright 1999, Center for Watershed Protection

Copyright 1999, Center for Watershed Protection

Copyright 1999, Center for Watershed Protection

This photograph is an example of an open channel. Photo Copyright 1999, Center for Watershed Protection

PRINCIPLE NO. 6 Lower Parking Ratios The required parking ratio for a land use should be enforced as both a maximum and a minimum in order to curb excess parking. Existing parking ratios should conform to local and/or national rates.

The required parking ratio for a land use should be enforced as both a maximum and a minimum in order to curb excess parking.

Existing parking ratios should conform to local and/or national rates.

 

One of the goals of principle #6 is to avoid big, empty parking lots like this. Photo Copyright 1999, Center for Watershed Protection

 

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

PRINCIPLE NO. 7 Reduce Parking Ratios for Mass Transit or Shared Parking Parking codes should be revised to lower parking requirements where mass transit is available or enforceable shared parking arrangements are made.

Parking codes should be revised to lower parking requirements where mass transit is available or enforceable shared parking arrangements are made.

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.

PRINCIPLE NO. 8 Reduce Parking Lot Imperviousness Reduce the impervious cover of parking lots by providing compact car spaces, minimizing stall dimensions, incorporating efficient parking lanes, and using pervious materials in spillover parking areas.

Reduce the impervious cover of parking lots by providing compact car spaces, minimizing stall dimensions, incorporating efficient parking lanes, and using pervious materials in spillover parking areas.

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.

Copyright 1999, Center for Watershed Protection

Impervious Cover Reduction

Add a comment

Related presentations

Related pages

Better Site Design Part1, SlideSearchEngine.com

Better Site Design: Model Development Principles to Protect Our Streams, Lakes, and Wetlands Presented by: Model Development Principles Three Categories of ...
Read more

PART 1 DESIGN

Established in 1994, P'ART 1 Design Private Limited is a young company. However, most of us are in this industry for over 20 years. We believe that to be ...
Read more

BSC’s Design Guide To Success – Part 1 « Better Sales ...

BSC’s Design Guide To Success – Part 1. ... we will highlight one of BSC’s Top Ten Tips from our acclaimed Design Guide to Success. ... Site design ...
Read more

Using SPWebProvisioningProvider to write better SharePoint ...

Using SPWebProvisioningProvider to write better SharePoint site templates (and avoid writing site definitions!): Part 1
Read more

Hagström HJ800 Jazzgitarre James D'Aquisto Design, Part1 ...

Hagström HJ800 Jazzgitarre James D'Aquisto Design, Part1 ... Site: For FAQs and more ... like "Do you think Mexican Fenders are better than ...
Read more

Jagthunder1 - YouTube

Jagthunder1 Videos; Playlists ... I hope everyone likes this new reboot of this great older design! ... Minecraft Build It Better (EP 10 Minecart Rail ...
Read more

Branding SharePoint - Part 1: Designing your SharePoint Site

Will your site design have a splash page ... Also ask for examples of the finished SharePoint site so you can see how close the resulting site looks like ...
Read more

Download Microsoft Business Intelligence VPC Release5.1 ...

BusinessIntelligenceVPCRelease5.1.part1.exe. 3.3 ... that helps them make better business decisions, faster. Microsoft BI is ... give web site feedback on ...
Read more