Beyond Residential Traffic Calming

1. Session 8 Beyond Residential Traffic Calming

2. Lessons from Europe • Choose Appropriate Design Speed • Choose Measures and Spacing to Achieve Desired Speed • Reallocate Right-of-Way Width in Favor of Alternate Modes • Provide Ample Pre-Warning • Emphasize Street Edge Treatments • Combine with Pedestrian Improvements

3. Design Speeds in a European Context • 15 km/h or 9 mph for Woonerven and Other Shared Surface Streets • 30 km/h or 19 mph for Stilleveje and Other Quiet Streets • 50 km/h or 31 mph for Traffic-Calmed Arterials in Urban Areas • 40-50 km/h or 25-31 mph for Intercity Routes through Rural Towns

4. Different Design Speeds County Surveyors Society, Traffic Calming in Practice, Landor Publishing, London, 1994, pp. 38-39 County Surveyors Society, Traffic Calming in Practice, Landor Publishing, London, 1994, pp. 44-45

5. Appropriate Measures for Different Applications(Danish Guidelines) (x) To be used only in special cases

6. Appropriate Spacing for Different Design Speeds(Danish Guidelines) • Desired Speed Spacing • 10-20 km/h (5-10 mph) 25-55 m (80-180 ft) • 30 km/h (20 mph) 75 m (250 ft) • 40 km/h (25 mph) 150 m (500 ft) • 50 km/h (30 mph) 250 m (820 ft) L. Herrstedt et al., An Improved Traffic Environment—A Catalogue of Ideas, Danish Road Directorate, Copenhagen, Denmark, 1993, p. 59.

7. Pre-Warnings in France and England L. Herrstedt et al., An Improved Traffic Environment—A Catalogue of Ideas, Danish Road Directorate, Copenhagen, Denmark, 1993, p. 140 County Surveyors Society, Traffic Calming in Practice, Landor Publishing, London, 1994, pp. 96-97

8. Street Edges L. Herrstedt et al., An Improved Traffic Environment—A Catalogue of Ideas, Danish Road Directorate, Copenhagen, Denmark, 1993, pp. 122-123 County Surveyors Society, Traffic Calming in Practice, Landor Publishing, London, 1994, pp. 88-89

9. Standard Treatment -- Gateways L. Herrstedt et al., An Improved Traffic Environment—A Catalogue of Ideas, Danish Road Directorate, Copenhagen, Denmark, 1993, pp. 120-121 County Surveyors Society, Traffic Calming in Practice, Landor Publishing, London, 1994, pp. 64-65

10. Standard Treatment -- Narrowings L. Herrstedt et al., An Improved Traffic Environment—A Catalogue of Ideas, Danish Road Directorate, Copenhagen, Denmark, 1993, p. 144 County Surveyors Society, Traffic Calming in Practice, Landor Publishing, London, 1994, pp. 84-85

11. Standard Treatment -- Lateral Shifts County Surveyors Society, Traffic Calming in Practice, Landor Publishing, London, 1994, pp. 72-73 L. Herrstedt et al., An Improved Traffic Environment—A Catalogue of Ideas, Danish Road Directorate, Copenhagen, Denmark, 1993, p. 150

12. Standard Treatment -- Bikeways L. Herrstedt et al., An Improved Traffic Environment—A Catalogue of Ideas, Danish Road Directorate, Copenhagen, Denmark, 1993, pp. 122-123

13. Standard Treatment -- Safe Crossings L. Herrstedt et al., An Improved Traffic Environment—A Catalogue of Ideas, Danish Road Directorate, Copenhagen, Denmark, 1993, pp. 116-119

14. Common Treatment -- Raised Areas County Surveyors Society, Traffic Calming in Practice, Landor Publishing, London, 1994, pp. 56-57