"It is the responsibility of each Highway Authority to provide this information to DataMapWales, so the information is accurately maintained. In this instance, the data in question belongs to Swansea Council and they provided it to the DataMapWales team. DataMapWales primary purpose was to show the restricted roads which were to remain at 30mph and every highway authority in Wales supplied this data. Some highway authorities also wanted to show the restricted roads defaulting to 20mph, although others such as Swansea decided not to do."
“https://datamap.gov.wales/maps/roads-affected-by-changes-to-thespeed-limit-on-re-view#/ does not show roads in Swansea that will be subject to a 20mph limit by virtue of legislation (restricted roads) from17th September 2023 . Please can you provide me with either a map of roads that will be subject to a 20mph limit by virtue of legislation (restricted roads), or provide a list of roads that will be subject to a 20mph limit by virtue of legislation (restricted roads) from17th September 2023 . If this information is to be uploaded to https://datamap.gov.wales/maps/roads-affected-by-changes-to-thespeed-limit-on-re/view#/ please confirm this, as this would satisfy this request in full.”
“The information that you have requested is now available on the link below, please accept our apologies for the delay in this information. https://datamap.gov.wales/maps/roads-affected-by-changes-to-the-speed-limit-on-re/” https://datamap.gov.wales/maps/roads-affected-by-changes-to-the-speed-limit-on-re/”
“Every highway authority was asked to submit a map of roads which remained at 30mph through Traffic Regulation Orders and these were submitted to Welsh Government by Swansea Council. This is what had gone live online in between the original request and the internal review and this is what the internal reviewer was referring to. The Council holds this data in the form of Traffic Regulation Orders that vary the default 20mph limit. Local authorities were also invited to submit data to show 20mph roads on the Welsh Government map. Swansea Council (like its neighbouring authority of Neath Port Talbot) declined to contribute any data because it didn’t have such a map. The manager has confirmed that he does have a street lighting map of the local authority area (obviously created for other purposes than for speed regulation) which is the starting point for creating a map but he didn’t and doesn’t have the staff resources to analyse this lighting plan in order to create an accurate map of 20mph roads.”
“The Traffic Manager has confirmed that the ‘roads that could become 20mph by order’ on the Data Wales map are roads which, although they did not have streetlighting, were considered to have 20mph as an appropriate speed limit because of other considerations. Because the 20mph default speed limit only applies on street-lit roads, applying a 20mph limit to these would require a Traffic Regulation Order. The map data in this category I understand was supplied by Swansea Council.”
“I have just spoken to the Traffic Safety Manager on this issue. [Does the street lighting map show all street lighting and/ or all restricted roads?} [Does the street lighting map show all street lighting and/ or all restricted roads?} 1. The map shows street lighting. It is a layer on the Council’s Geographical Information System. It was created so that the Council can inspect, maintain and repair the lamp standards and ensure that its roads are adequately lit at night and so help prevent accidents, theft and crime [If the map shows all street lighting, what work would have to be done to identify the restricted roads (where we understand the ‘default’ 20mph applies)]? 2. The work involved in creating a definitive map of 20mph roads is to overlay on a map of all street-lit roads in the local authority area a map of all such roads which are subject to Traffic Regulation Orders (TROs) varying the speed limit. There are street-lit roads in the local authority area which are subject to speed limits of between 30 and 70mph by virtue of TROs. There are also roads which are not street-lit which are subject to a 20mph limit by virtue of a TRO which would need to be added. When Welsh Government prepared for the change in the law, all local authorities were required to provide details of roads subject to other speed limits (and roads which are not street-lit which are subject to a 20mph limit by virtue of a TRO) to be added to the data map (the exceptions) but not those roads (the bulk, in an urban area like Swansea) which would by default change from 30 to 20mph. Supplying the latter data was made optional by Welsh Government. Some Welsh local authorities have had the internal staff resource to create such a map: Swansea Council could however only hope to do this by employing an external consultant with sufficient expertise to create such a map with the required high degree of accuracy. Doing this work remains on the ‘wish list’ when financial resources allow, but it is not a requirement on the authority by Welsh Government.”