That’s never been quite true, although for campaigners within the city limits of Bath, that’s the goal. > Reducing speed limits to 20mph protects cyclists and doesn’t delay traffic, new research findsHe estimates the cost of creating a ‘blanket’ 20mph limit would be around £15,000 and that the policy represents, excellent value for money. Bath 30mph roads (Image Credit: Bath 20mph city)Transport academic Pete Dyson, supports the proposals, noting, “Bath has been fortunate to maintain a largely traditional street design and there is just one mile of dual carriageway. We have already seen 20mph works well for people on places like London Road, which is now safer, less polluted and easier to cross. If there was a petition to not have 20 mph limits, I am sure that would garner much more support.”