Council takes next step to complete 20mph zones

Tuesday 9 May. 6.30pm. Traffic Management Advisory Committee, 20mph Zones

This Council Committee meeting will consider the results of the 20mph  Zones consultations, including the one on the left hand side of Norbury’s London Rd as one drives up from Croydon Town Centre. Norbury.


3,357 representations were received during the consultation. All but 103 raised objections such as consultation process problems, enforcement problems, congestion, pollution, along with 791 alternative proposals.


A major concern expressed e.g. at public meetings is over the problem of enforcement against driving over 20mph. The report states that the Council and Croydon Metropolitan Police have issued the following joint statement:

‘’The Metropolitan Police service and Croydon Council are committed to any initiative that might help reduce the number of road traffic collisions and subsequent casualties. We will continue to work together to address issues of speeding and provide physical solutions or enforcement action where there are high numbers of recorded collisions, complaints or high degrees of noncompliance. This will not change with the introduction of 20mph limits, but engineering solutions or enforcement action will only be targeted at sites where intelligence indicates that this is appropriate and proportionate for the situation. We further envisage Roadwatch, the Council’s speed display signs and ANPR systems, and other engineering and enforcement methods, to all be part of the solution in aiding compliance.’

Teething Problems

The report also states:

‘There have been few complaints or correspondence received since the areas 1 & 2 in Croydon had their new speed limits in place. Generally complaints received have been regarding new signage and drivers exceeding the new speed limits. It is recognised that driver behaviour is not expected to change suddenly and compliance with the new limits is unlikely to happen overnight. It takes time for this behaviour change to happen and in line with experience elsewhere it is expected that compliance will improve over time.’

An example of teething problems – the non-working of a speed monitor on Norbury Crescent and the persistence of Norbury resident Jane Kelly to get it working was reported in

Air Pollution

In relation to pollution objectors argued that ‘Vehicles driving at lower speeds and the use of lower gears will result in increased emissions. Vehicles on roads for longer periods will increase noise and emissions. This will contribute to poor air quality.’

The report discusses this as follows:

‘It is believed that motor vehicles generally operate most efficiently at speeds higher than 20mph so decreasing vehicle speeds could result in higher emissions and fuel use. On the other hand, a lower speed limit in urban areas could possibly encourage smoother driving with reduced acceleration and braking, which would tend to reduce emissions and fuel use. With regard to driving styles, studies carried out by Imperial College London observed that, across several routes in central London, a greater range of speeds occurred on 30 mph segments compared to 20mph segments. A larger proportion of time was spent accelerating and decelerating on 30 mph segments suggesting that 20 mph routes may facilitate smooth driving. These studies also identified the need for further research into emissions resulting from nonexhaust sources including brake and tyre wear. Modal shift to walking/cycling or public transport as a result of a safer and more attractive environment for active travel would reduce emissions, as well as improving the health of individuals. Recent data available from RoSPA supports this.’

The Manchester Experience

Manchester has been reported in the news that it was halting its 20mph roll out.

‘Manchester City Council was recently reported by some of the national media to have halted the roll out of their own 20mph limits on residential streets. The reason given was that the reduction in average speeds were not as large as had been expected. Despite the reports of the scheme being halted, the council reported an overall average speed reduction of 0.7mph, cyclist casualties reported as reduced by 42% citywide and in the residential 20mph areas the fall was as low as 12%. The fall in pedestrian casualties was reported by the Council as 29% citywide and in the residential 20mph areas as low as 14%. The figures compare periods in 2012-14 with 2014-16.’






As to the cost of the scheme it is paid for by Transport for London not the Council.

The full report  can be accessed at

About seancreighton1947

Since moving to Norbury in July 2011 I have been active on local economy issues with Croydon TUC and Croydon Assembly, and am a member of the latter's Environment Forum. I am a member of the 5 Norbury Residents Associations Joint Planning Committee, and a Governor of Norbury Manor Primary School. I write for Croydon Citizen at I co-ordinate the Samuel Coleridge-Taylor and Croydon Radical History Networks and advise the North East People's History Project.. I give history talks and lead history walks. I retired in 2012 having worked in the community/voluntary sector and on heritage projects. My history interests include labour movement, mutuality, Black British, slavery & abolition, Edwardian roller skating and the social and political use of music and song. I have a particular interest in the histories of Battersea and Wandsworth, Croydon and Lambeth. I have a publishing imprint History & Social Action Publications.
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