Post on 28-Mar-2020
Infrastructure Design Standards for Sustainable Residential Development
Civil and Environmental Engineering
Scott A. Brown, P.E.The Pennsylvania Housing Research Center
PennSCAPES, 2003
Project Goal
Create a set of model codes that can be used to efficiently update local ordinances to affect sustainable development and decentralized
stormwater management;
And
Have model codes adopted voluntarily.
Voluntary AdoptionMust fit a variety of residential development styles and diverse community visions.
Traditional Suburban Subdivisions
PennSCAPES, 2003
Voluntary AdoptionMust fit a variety of residential development styles across the state
Suburban Cluster Subdivisions
PennSCAPES, 2003
Voluntary AdoptionMust fit a variety of residential development styles across the state
Traditional Mixed Use Subdivisions (PUD)
PennSCAPES, 2003
Voluntary AdoptionMust fit a variety of residential development styles across the state
Suburban Traditional Neighborhood Development (TND)
PennSCAPES, 2003
Voluntary AdoptionMust fit a variety of residential development styles across the state
Conventional Rural Subdivisions
PennSCAPES, 2003
Voluntary AdoptionMust fit a variety of residential development styles across the state
Rural Cluster Subdivisions
PennSCAPES, 2003
Voluntary AdoptionMust have concurrence from appropriate state regulatory agencies and other stakeholders
Oversight Committee:
• DEP• PennDOT• DCED• Municipal Officials • Engineering Community• Planning and Landscape
Architecture Community• Surveying Community
PennSCAPES, 2003
• Builders / Developers• Site Contractors• Environmental Groups
Approach
1. Research existing standards (streets, stormwater management, water, sewer);
2. Develop standards and commentary;3. Create an oversight committee of industry
stakeholders and facilitate oversight committee meetings;
4. Provide public awareness and training.
Project Cost and Funding
• Estimated project cost $608,000• Initial Seed Funding From PBA ($5,000)• PHFA Grant ($150,000)• Water Environment Research Foundation / EPA
($150,000) • PHRC Operating Funds ($132,000)• Other yet to be determined ($171,000)
Recommended Infrastructure Standards
• Site Design Considerations
• Residential Streets and Parking
• Non-vehicular Circulation
• Stormwater Management
• Sanitary Sewer Systems
• Potable Water Systems
• Other Utilities (Power, Gas, Telephone, Cable)
• Site and Lot Grading
Project Status / Schedule
• Site Design Considerations (0 %)• Residential Streets and Parking (85%)• Non-vehicular Circulation (40%)• Stormwater Management (10 %)• Sanitary Sewer Systems (0 %)• Potable Water Systems (0 %)• Other Utilities (Power, Gas, Phone, Cable) (0 %)• Site and Lot Grading (0 %)
Anticipated Completion - January 2007
Approach:
1. Review of existing PA ordinances and standards2. Review other existing and suggested standards
• PennDOT• AASHTO• Residential Streets (NAHB, ITE, ASCE, ULI)• Performance Streets (Bucks County)• PennSCAPES• Other
3. Compile Guideline Standards4. Pier review
Residential Streets and Parking
First Step….review of existing ordinances and standards
• Classification schemes• Width• Longitudinal Grade• Parking Configuration• Curbs vs. No Curbs• Pavement Structure• Sidewalk Standards• Cul-de-sac Characteristics
Residential Streets and Parking
Municipal Road Classification Schemes
Rural
Residential
Inter-community
Alley
Private
Local Primary
Local Secondary
Minor Collector
Local
Collector
Marginal Access
Single Access
Local Access
Feeder
Collector
Service / Marginal Access
Residential Access
Rural Residential Access
Industrial Access
Minor Collectors
Major Collectors
Minor Arterials
Access
Sub-collector
Collector
Alley
Local
Collector
Loop
Cul-de-sac
Residential – Primary
Residential – Secondary
Marginal Access
Collector
Local Access Streets
Residential
Rural Residential
Industrial Streets
Collectors
Minor
Major
Residential Service
Rural Service
Neighborhood Feeder
Inter-community
Alley
Minor
Collector
Cul-de-sac
Local
Collector
Limited Access
Local Access
Minor
Collector
Connector
Marginal Access
Alley
Collector
Minor
Connector
Collector
Sub-collector
Minor/Loop
Cul-de-sac
Marginal Access
Private Lane
Residential Street Classification:
Objectives1. Must be based on function within a community
environment; not just vehicular mobility;2. Must integrate with the PennDOT road
classification system;3. Should be consistent across township lines.4. Must be applicable to both rural and urban
settings;5. To be well received, it must consider all local
road functions (commercial, mixed use, and residential).
Residential Street Classification:
Residential Access Streets (A & B)Residential CollectorsResidential Mixed Use CollectorsSpecial Streets
AlleysDivided StreetsStub Streets
Non-Residential StreetsMunicipal CollectorsCommercial / Industrial Streets
Existing Streets