People want 20mph streets. Fortunately, 20mph limits are affordable and do-able. What’s the best method? The Welsh Government can lead with a 20mph default for built up areas. This is a cost-effective win-win all round – eg for the legal process, consultation, signage, engagement, higher compliance and enforcement.Read more
Far from having a “national” urban speed limit of 30mph, this has been rejected by local authorities for a quarter of the UK population. All but two Inner London Boroughs and over half of the UK’s largest urban authorities now have a 20mph limit for most roads. Rather than just “recommending” 20mph limits the government should set a national 20mph limit and permit local authorities to justify any higher limits.Read more
Summary of Costs and Benefits of 3 Options for Scottish Road Speeds – The Impact of the 20mph National Default Limit
We give our best estimates of the options for rolling out 20mph limits across Scotland. The country will have the benefit of learning from the success of other country 20mph/30kmh implementations, especially England where 25% of the population lives in local authorities who are or have already implemented 20mph limits for most roads. But Scotland can follow the "English" way by implementing authority by authority subject to local political support and funding, or take a more radical and cost effective route by making a national plan for country-wide implementation.
This allows the avoidance of the need for repeater signs on 20mph roads and simplifies the whole implementation process. Local authorities will still be able to nominate roads which will remain at 30mph as exceptions.
Here we present our best estimates of the cost and benefits for each. Transport Scotland will be well placed with its access to street and road detail to produce a more accurate costing and we would be pleased to work with them on such an exercise.Read more
The Scottish Government can lead on a 20mph default for built up roads. Default 20mph is eight times cheaper than each Local Authority signing 20mph where people and motor traffic mix. LA’s funding each locality is £13.5-£15m more than a national default. We urge Ministers to choose road danger reduction at source for all and choose default 20mph. The £2m cost is only 0.3% of Scotland’s trunk road capital budget.Read more