The web site streetmap.co.uk has street maps (as you'd expect) but also has Ordnance Survey maps at 1:50000 and 1:25000 scales. The PNFS volunteer can make good use of these maps. You don't need to register and it's completely free. This page tells you how to carry out various useful tasks:
Note: It's likely that streetmap.co.uk's maps are a snapshot of the Ordnance Survey's maps at some time in the (recent or distant) past. For the very latest maps it's probably better to go to the Ordnance Survey's Get-A-Map service, though in many respects that service is less convenient than streetmap.co.uk.
You can create a link which, when you click on it, calls up a map from streetmap.co.uk with the scale you specify and the orange arrow pointing to a specific location. This link would be embedded in an electronic document. An example would a Microsoft Word document in which you keep a record of your inspections. Another example would be an email message to the Highway Authority.
Creating a link works differently according to what software you're using. Below is a Microsoft Word example. You'll have to work out for yourself how to do the similar operation with other software. Actually only the last two steps are specific to Microsoft Word
In your document, you should have created something like this:
To activate the link in Microsoft Word you need to hold the Ctrl key down while clicking on it. On this page, you can just click on it.
Creating a link might seem a little long-winded but it gets a lot easier with a little bit of practice.