Not all main streets.

I understand the rational behind the 20mph limit and that all residential housing estates need to be 20mph, but not all main roads through a town need to be 20mph. Yes, the main part containing shops but not the whole street. Nairn is a prime example where the 20mph limit goes on for too long adding no benefit at all. They have even extended the 30mph limit out further and the previous 40mph limit even further. This causes longer journeys, increased fuel use, and increased frustration. There needs to be more thought given to where it is appropriate and minimise it to just those areas.