Lesson 7: Adapting Suburban Communities for Bicycle and Pedestrian Travel
![Picture shows a boy walking to school. He is crossing in a wide crosswalk and carrying a book bag. Cars wait for him to pass.](images/les7fig1.0.jpg)
Lesson Outline
- Historical development of urban and suburban land use.
- Costs of sprawl.
- Retrofitting suburban roads to accommodate bicycles and pedestrians.
- Safe Routes to School planning.
- Retrofitting commercial/office developments.
Suburban Development
- Streetcar suburbs.
- Leapfrogging.
- Auto orientation.
- Infilling.
- Street hierarchy.
Present Land Use Forms
- Individual tract subdivisions.
- Linear arterial streets.
- Bypassed vacant land.
Suburban Street Scenes
![The picture shows an extremely wide 2-lane road with a car driving toward the viewer. The street looks like it is wide enough to be a four lane road, but it is striped only with a centerline. The road looks like it is a place where speeding is a problem.](images/les7fig1.jpg)
Costs of Sprawl
- Infrastructure: streets, utilities, parks and schools.
- Environment.
- Health and physical activity.
Retrofitting Suburban Arterials
- Independent retrofit projects.
- Evaluation of road widening projects.
- Road diets.
- Form-based codes.
Restriping to Create Bike Lanes
![The picture shows a busy downtown street with cars parked at the curb, and a bicyclist riding in a bike lane between the parked cars and moving traffic. The overlay on the photo shows the width of lanes: "7’ Parking Lane, 5’ Bike Lane, 10’ Travel Lane" showing how striping could be changed to provide space for bicycling](images/les7fig4.jpg)
Road Retrofit—Before
![The picture is of a long, straight five lane road with a center turn lane. There are businesses along the road and traffic moves quickly. There is moderate traffic flow.](images/les7fig5.jpg)
Road Retrofit—After
![This picture is of the same road as the previous slide after improvements. The improvements include a sidewalk, bike lane and four lanes of traffic divided by a landscaped median.](images/les7fig6.jpg)
Road Diet—Before
![Picture shows an aging main street. There are wide sidewalks in front of shops. There are four wide traffic lanes as well as parking on both sides of the street. There are no trees or landscaping.](images/les7fig7.jpg)
Road Diet—After
![Picture shows the same street as the previous slide with improvements. There are now two travel lanes with on street parking. Bike lanes have been added. Left and right turn lanes have been added at intersections. The center lane is now a turn lane and has stripes running across it to deter travel in that lane.](images/les7fig8.jpg)
Safe Routes to Schools (SR2S)
Health Issues
![Graphic showing chart with timeline that illustrates that in recent years, the percentage of children who make trips on foot has decreased, while overweight children have increased significantly. The caption reads: "35% of youth do not participate in regular physical activity."](images/les7fig10.gif)
35% of youth do not participate in regular physical activity.
Origins of the SR2S Concept
- Denmark – early 1980s.
– | Worst child pedestrian crash rates in Europe. |
– | In Odense, an 80% reduction in child crash rates in 10 years. |
- United Kingdom – Sustrans.
– | Demonstration program in 1995 (10 schools). |
– | Traffic decrease of 12% to 17%. |
Marin County, CA
- One of two TEA-21 national models.
- Combination of funding:
– | County transportation funds, National Highway Traffic Safety Administration, several private foundations, Bicycle Coalition. |
- 21% of morning commute is school dropoff.
- 9 pilot schools and 1,600 students in 2000.
- 23 schools and 12,000 students participating in 2004.
Results
- 57% increase in children walking and biking.
- 29% decrease in children arriving by car.
| ![The picture shows 6 children holding up handmade signs with messages such as 'Kids Crossing', 'Be fit - Be healthy', 'Walk don't pollute' and 'Be cool, walk to school.'](images/les7fig11.jpg) |
Lesson Summary
- Suburban development patterns have made it difficult to use nonmotorized transportation.
- There are many ways to change this condition:
– | Retrofits to existing facilities. |
– | New developments. |
FHWA-HRT-05-098
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