Elaborating on best practise for traffic calming pedestrian - - PowerPoint PPT Presentation
Elaborating on best practise for traffic calming pedestrian - - PowerPoint PPT Presentation
Elaborating on best practise for traffic calming pedestrian crosswalks Lars Leden Charlotta Johansson Peter Rosander Per Grder Structure of presentation Meta analysis of Swedish and Israeli test studies Additional countermeasusures
Structure of presentation
Meta analysis of Swedish and Israeli test studies Additional countermeasusures Dissemination of best practise examples
Type of countermeasures studied in three Swedish and eight Israeli test sites
Narrowing the street at pedestrian crossing Speed cushions
- r hump
Elevated crosswalk Posted speed km/h Regementsgatan X X 50 Tessins väg X X 30 Borås X x 30 Israeli test sites X X 50
N
Speed cushions at Regementsgatan – Dragonstigen in Malmö
5 m
9 m
Speed cushions at Tessins Väg - Henrik Wranérs Gata in Malmö
The shorter distance is 4.2 m to the left in the figure, and the longer distance to the right is 10.2 m.
4 m 10 m
Implementation of speed cushions at crosswalk at Hultagatan in Borås.
Main components of raised crossing arrangement site 7 in Israel.
- 1. – a raised crosswalk
- 2. – a circular speed hump before the crosswalk
- 3. – traffic signs and amber flashing light
Gitelman, Carmel, Pesahov, Chen (2016).
3. 1. 2.
Speeds Swedish test sites
Shorter distance Longer distance 12 m before PCR On PCR 12 m before PCR On PCR Dragonstigen mean 24.2 23.1 17.0 22.1 std dev (mean) 1.51 1.21 0.59 0.51 90% 34 30 23 27 n 37 34 52 53 Tessins Väg mean 23.6 23.9 23.8 22.5 std dev (mean) 0.68 0.65 0.54 0.43 90% 29 30 30 28 n 39 45 117 132
Yielding at Swedish sites
Pedestrians were more often given way by the first driver in the near lane when the distance between the crossing and the speed cushion is longer: 50% at longer distances compared with 40% at shorter (p < 0.05)
Israeli results
Mean speed and the 85-percentile were both reduced by 20-30 km/h The share of vehicles yielding to pedestrians increased from 80% to 96-98%, in the near lane, and from 62-63% to 98-100%, in the far lane.
Traffic environment for children: max 20 km/h
- If the goal is to eliminate serious injury accidents
30 km/h might not be a sufficiently low speed Höskuldur (2015)
- Children 7 to 12 should not cross streets at
location where vehicle speeds exceed 15-20 km/h Johansson & Leden (2010)
Actions taken at the crosswalk with most pedestrians injuries in the city. Kaivokatu, Helsinki, Finland
1.30 km/h speed limit marked with signs 2.Automatic speed enforcement with a camera 3.Road markings in the carriageway 4.Advanced stoplines with ten meters
Raised crosswalk with redrawn stop lines
Playa de las Americanos Arquitecto Gomez Cuesto, Tenerife
Redrawn stop lines at every crosswalk in the city
Best practise to be discussed
Early yield bars Los Angeles US
15