Glasgow and the Quest for 20mph Speed Limits Glasgow CTC AGM Presentation http://bit.ly/1GJvjrI Bob Downie 3 rd November 2015 1 11/4/2015
Introduction • Why 20mph for Glasgow’s Streets? • What is Edinburgh doing about 20mph? • Glasgow’s road network: how big is it, what kinds of roads does it comprise? • A brief historical review of the installation of 20mph areas in Glasgow • A comparison of the installed 20mph areas and pedestrian and cycle accident distributions • Conclusions – Where are We Now With 20mph in Glasgow? – What Can We Do? 2 11/4/2015
Why 20mph for Glasgow’s Streets? • Reduction in the number and severity of traffic collisions • Improvements to the environment • 20mph urban speeds currently supported by – Scottish Government – Glasgow City Council – Road safety, cycling and disabled support groups – Opinion polls show that most people want to live on a 20mph street http://drnoble.co.uk/musings/20mph-limits-in-towns 3 11/4/2015
What is Edinburgh Doing About 20mph? Proposed and in Progress 20mph Implementation • In final consultation- report Jan 2016 80% of Edinburgh’s roads to be 20mph Including • No traffic calming large sections of arterial and main roads http://www.edinburgh.gov.uk/info/20243/20mph_for_edinburgh/1240/map_of_proposed_20mph_streets 4 11/4/2015
Glasgow’s Road Network: The Challenge of Determining Which Should be 20mph Exclusive of motorways, Glasgow contains about 1880km of roads Open Street Map data 5 11/4/2015
Potentially >1500km of Roads Where 20mph is Appropriate Residential roads 1,385km total “Tertiary” Roads 234km total The 20mph challenge Residential roads 1,385km Tertiary” Roads (~50%) 117km Arterial Roads ?? TOTAL >1500km (~80% of the non-motorway network) Non-motorway arterial roads 275km total 6 11/4/2015
A brief Historical Review of the Installation of 20mph Areas in Glasgow • In 2010 GCC initiated installation of 20mph zones on residential roads Existing & Planned 20mph Areas – Phases 1 to 4 (163km) complete or 2011 Phase 1 near complete (2015) 2012 Phase 2 2013 Phase 3 – Phase 5 plan for 20mph zones in 2014/15 Phase 4 Dowanhill and the city centre with no traffic calming • Implementation Rate – The 163km of Phases 1 to 4 have taken 5 years to complete – equivalent to a rate of 33km/year • Approximately 1350km of mainly residential roads outstanding Residential road Tertiary road Highway • At the rate of 33km/year another 40 years to complete 20mph implementation 7 11/4/2015
Cycle Accidents In this time period, 1999-2013 roughly 1695 accidents within the City of Glasgow were reported to police in which a cyclist was involved. That can be expressed as: 113 cycle accidents/year 0.90 accidents/km of non-motorway road Blue dot =male casualty Red dot = female casualty Note high concentration of accidents on arterial roads STATS 19 Data source http://discover.ukdataservice.ac.uk/
Cycle Accident Point and Heatmap 1999- 2013 Accidents are largely concentrated on arterial roads with some streets in the West End, City Centre and Southside have accident rates 20x higher than Glasgow’s roads on average Roads with the highest cycle accident rates have the accident points posted in colour (blue =male casualty, red = female casualty) On other roads, the accident points are shown as small black dots. Sections of the following roads are observed to have high accident rates
Typical High Cycle Accident Arterial Roads Common Factors: • Shops Kilmarnock • On-street parking Road • No cycle facilities • Junctions Victoria Road Byres Road 10 11/4/2015
Shieldhall Rd Dumbarton Rd Clyde Arc Br. Govan Roundabout 10 accidents Roundabout Junction 9 accidents 7 accidents 7 accidents Shieldhall Rd Cycle Accident Point Roundabout Shields Rd 10 accidents and Heatmap Roundabout 7 accidents 1999-2013 ROUNDABOUTS & HOTSPOTS Concentrations of cycle accidents occur at specific Paisley Rd W. locations, particularly at Roundabout Pollok Park 7 accidents roundabouts These roundabouts are frequently on travel “desire” lines and are difficult for cyclists to detour around Pollok Battlefield Roundabout The 10 locations figured on the left Auldhouse Roundabout 7 accidents accounted for 5% of all cycle accidents Roundabout 6 accidents 13 accidents for the period
Typical Cycle Accident Hotspot Roundabouts Shieldhall Road Roundabout Pollok Roundabout Common Factors: • On cycle desire lines • Dual carriageway/ multi-lane • No cycle facilities Auldhouse Roundabout 12 11/4/2015
Pedestrian Accident Heatmap 1999-2009 and 20mph Areas Existing and proposed 20mph zones Relative intensity Proposed City Centre 20mph area Note concentration (TRO 201_) around of accidents along high accident area arterial roads 13
Cycle Accident Heatmap 1999-2013 and 20mph Areas Existing and proposed 20mph zones Relative intensity Proposed City Centre 20mph area Note concentration (TRO 201_) around of accidents along high accident area arterial roads 14
Glasgow City Centre Accident Rates & Proposed 20mph Area Proposed city centre 20mph zone Cycle accidents Pedestrian accidents 1999-2013 1999-2009 • Glasgow City centre contains 43km of roads, 2.25% of the total non-motorway city road network • It accounted for 18.4% of the pedestrian accidents in the period 1999-2009 ( 8x higher rate per km than average) • It accounted for 8.2% of the cycle accidents in the period 1999-2013 ( 3.6x higher rate per km than average) • The city centre has very high pedestrian and cycling accident rates and the proposed 20mph zone is likely to reduce both the numbers and severity of both 15 11/4/2015
Cycle Accident Detail for the Shawlands Area 1999-2013 The preferential siting of 20mph zones in residential Queens Park areas tends to miss out the arterial roads where most High accident rate arterial cycle and pedestrian Kilmarnock accidents occur Road 20mph zone Battlefield installed in 2013 on Roundabout streets with few “hotspot” accidents 5 accidents 16 11/4/2015
Conclusions • The city centre is the locus of the highest accident rates to vulnerable road users. The current proposal for 20mph in this area ( Mandatory 20mph Zones (city centre) ) should be warmly welcomed • 20mph speeds in residential areas are highly desirable but outside the city centre the greatest proportion of accidents involving vulnerable road users is associated with the arterial roads, especially where these coincide with shopping streets. Significant sections of these roads must be brought into future 20mph schemes if accident rates and severities are to be reduced • This analysis has highlighted the egregiously dangerous nature of certain roundabouts, especially where these are situated on dual carriageways. It is unclear if 20mph would be appropriate for these road junctions. Other means to reduce the accident rates at these hotspots must be urgently sought 17 11/4/2015
Where are We Now With 20mph in Glasgow? • A petition to encourage Glasgow City to consider adopting a 20 mph policy similar to that proposed in Edinburgh acquired 222 signatures by the closing date of 17 th March 2015. • At a presentation to the Petitions Committee on the 12 th May 2015, the petition proposal received unanimous cross-party support and the committee instructed the Executive Director of Land and Environmental Services to submit a report to consider the pace and scale of phasing for the implementation of 20 mph speed limits within Glasgow • A report entitled “ Review of Mandatory 20mph speed limit policy ” has now been scheduled for submission to the Sustainability and the Environment Policy Development Committee for discussion on 25th November 2015 • Glasgow City Council currently has a public consultation for mandatory 20mph speed limits in the city centre and is seeking comments 18 11/4/2015
What Can We Do? • Please assist GCC in its desire to slow the city centre to 20mph by supporting the proposed TRO, Mandatory 20mph Zones (city centre) . Letters and emails of support can be sent up to the 30 th November 2015 (more information at http://bit.ly/1XjJmZ1) • CTC members should consider pressing their council representatives to support the extension of 20mph areas more widely across the city, to include arterial roads where high accident rates prevail – Press for enhanced cyclist safety on roundabouts 19 11/4/2015
Glasgow CTC 2015 AGM 3 rd November 2015 MOTIONS 20 11/4/2015
Glasgow CTC 2015 AGM MOTION 1 • CTC Glasgow recognises from analysis of STATS 19 data that the central area of Glasgow has rates of cycling and pedestrian accidents many times higher than the city as a whole. • CTC Glasgow therefore welcomes the proposed Traffic Regulation Order to implement mandatory 20mph speed limits within the city centre. • This motion is to seek approval from the CTC members attending the Glasgow CTC 2015 AGM, for the Glasgow CTC committee to send a communication to Glasgow City Council supporting this proposed TRO. 21 11/4/2015
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