Home Menu Search

Nudge theory markings trial delivers 'outstanding' safety results

7 July 2023

New nudge theory road markings trialled in Scotland have had significant road safety benefits for motorcyclists taking left-hand bends, resulting in speed reductions, better braking and improved road position on the approach.

Since the start of the trials there have been no motorcycle injury collisions at any of the previously identified accident cluster sites where the markings have been deployed, Transport Scotland said.

The markings are called Perceptual Rider Information for Maximising Expertise and Enjoyment (PRIMEs) and apply academic theories on human factors – commonly known as 'nudge' psychology – to prime riders to adapt their riding as they approach a bend.

PRIMEs consist of 'gateway' road markings and associated information signage - the lines direct the rider to a better position and give the impression of the road narrowing to encourage slower speed.

The research was undertaken over three years at 22 trial sites across the West of Scotland, in what is believed to be the most in-depth investigation of motorcycle rider behaviour anywhere in the world to date.

The Road Safety Trust provided over £215,000 to Transport Scotland to test the experimental markings.

The next step will be the production of a guidance pack for road authorities in Scotland on how they can implement PRIMEs locally.

Transport Scotland said it hopes this low-cost intervention will be of interest to roads authorities worldwide.

The Scottish Government aims to have 'the best road safety performance in the world by 2030' and zero harm by 2050.


Related news, events and information

Transport Scotland - PRIME

9 December 2023 – From 2020-2022, road trials of unique and low-cost 'PRIME' road markings were conducted at 22 sites on...

MCIA & ACPO: Realising the motorcycling opportunity

22 December 2014 – The Motorcycle Industry Association (MCIA) and Association of Chief Police Officers (ACPO) have produced this...

First speakers confirmed for inaugural PTW conference

22 August 2018 – Story from Road Safety GB Organised by Road Safety GB and FirstBike, and the team behind the Young Driver...

Government Actions

5 April 2013 – Although the UK has one of the best road safety records in the world, government accepts that more can be done...

Safer Roads initiatives honoured with Royal Awards

10 December 2019 – A number of initiatives have been honoured with a Prince Michael International Road Safety Award under the...

'Slow Down, Speed Kills' campaign launched in Kenya

1 November 2013 – The importance of a coordinated approach to road safety is well documented. Perhaps nowhere is this better...

Bank Holiday driving

1 May 2006 – With the Bank Holiday looming it is heartening to read that West Yorkshire's unique and ambitious casualty...

MEPs back new road and vehicle safety rules

14 January 2019 – Story from the ETSC. New EU rules covering road infrastructure safety and minimum vehicle safety standards...

Better infrastructure will ease the journey of automated vehicles

15 June 2018 – Serious crashes on inter-urban roads may be slashed by a quarter over the next 30-40 years with the...