What is logic behind speed limit changes?

Dear Editor,

It was very interesting to read the article and letter in the Observer (December 11, 2019) regarding Stirling Council’s `Walk, Cycle, Live’ routes.

The article related to Airthrey Road, between Causewayhead and Bridge of Allan. This was designated a `Walk, Cycle, Live’ and how

“as part of (the council’s) commitment to improve safety conditions for pedestrians and cyclist” they

This, along with the Argon laser, should have produced a spectacular display. The rehearsal, in the middle of the previous night, went according to plan but next day with King Street packed it all went wrong when the Argon laser blew up.

The Krypton laser was great but the power supply cut out after the mini explosion and the Argon laser failed to come on, so the overall display was disappointing.

Of course, 24 hours later everything was fine and the lasers were on every night throughout December until Hogmanay. were reducing the speed limit from 40mph to 30mph and placing vehicle activated signs (VAS), at a great cost, to make it safer. This route has identified cycle lanes and lights for crossing the road.

The letter was about the `Walk, Cycle, Live’ route out of Cambusbarron which was described by your correspondent Roddy Ross. The route is on a single track road with passing places, no cycle or pedestrian paths, deep ditches at sides of road, busy commuter route etc. and when it was first marked as this type of route it was signed at 30mph, but a few days later it was changed to 40 mph, so “as part of our commitment to improve safety conditions for pedestrians and cyclist” why was this changed?

Can the council please explain its logic?

Brian Sowton Cambusbarron