1. Street Connectivity: Implications for Small Town Transportation Performance
Jen Duthie
Considering connectivity can be even more important in small towns since there are fewer streets to work with. Designing great streets, ones that are good for all modes, is only going to be useful if the streets connect with others – people need to get to and from the streets.

2. A Look at San Marcos

3. Easy Intermediate Difficult Future Trail Shared Use Path
Potential connectivity problems: San Marcos River, IH-35, the university, street patterns
Ref: San Marcos Bike Map, 2012
Easy
Intermediate
Difficult
Future
Trail
Shared Use Path

4. Why Connectivity Matters

5. Ref: McNeil, N. (2010) Bikeability and the Twenty-Minute Neighborhood, Portland State University Master’s Thesis.

6. Quality of routes to/from Ferry building (SF)
Differences due to hills
Quality of routes to/from Ferry building (SF)
Ref: Zorn et al. “Completing the Cycle: Incorporating CycleTracks into SF-CHAMP,” presented at ITM 2012

7. Change in route quality to Ferry Building due to infrastructure improvement
Ref: Zorn et al. “Completing the Cycle: Incorporating CycleTracks into SF-CHAMP,” to be presented at ITM 2012

8. A constructed path may not be the desired path.

9. Measuring Connectivity

10. Average block length: 347 feet 176 intersections per square mile
Craddock Ave
RM 12
9% street density
Average block length: 347 feet
176 intersections per square mile
100 four-way intersections per square mile
Connected node ratio: 0.97

11. Average block length: 487 feet 92 intersections per square mile
Sessom Dr.
Aquarena Springs Dr.
5% street density
Average block length: 487 feet
92 intersections per square mile
8 four-way intersections per square mile
Connected node ratio: 0.56

12. Incorporating Roadway and Intersection Characteristics

13. Low-stress routes with intersection effects
Low-stress routes without intersection effects
Low-stress routes with intersection effects
Lowest Stress
Importance of intersections
Most Stress
Ref: Mekuria et al. (2012) Low-Stress Bicycling and Network Connectivity, Mineta Transportation Institute

14. Jen Duthie jduthie@mail.utexas.edu (512) 232-3088
Comments? Questions?
Jen Duthie (512)