We use cookies on this site, but we don't capture any personal information. View cookie options.

What happens if I decline cookies?

This site makes limited use of cookies for web analytics. If you decline cookies, we will suppress Google Analytics and any future third-party cookies on this site. Please make your selection below.

The site also uses essential cookies as permitted under the UK's Privacy and Electronic Communications Regulations for purposes such as remembering which items you may have selected or opened as you move from page to page. To reject ALL cookies and continue to use this site, please amend your browser settings, but if you do, please be aware that some parts of the site will not work as intended.

For more information, see our Privacy policy page.

Current status:

Accept cookies     Decline cookies      Reset     Close

Leading consultancy for map-based traffic orders

Leading consultancy for map-based traffic orders


Buchanan Order Management – heading image

Case study

Transport for London (TfL)

BOM works with TfL on their London Digital Speed Limit Map (LDSLM)

The TfL London Digital Speed Limit Map (LDSLM) was first created in 2007 when Trevor Clark and his team undertook a survey of the entirety of Greater London, collecting all terminal and repeater speed limit signs. The result was a colour-coded GIS map (see image below) which was made available for satellite navigation units and was used by TfL in prototype Intelligent Speed Adaptation (ISA) vehicles.

caption|Overview of the LDSLM, with Legend
Overview of the LDSLM, with Legend

 

The project was successful and TfL are currently rolling out the system on bus routes throughout London to improve road safety. As part of an ongoing contract with TfL, the BOM team regularly update and maintain the TfL LDSLM, mapping new speed limits that have come into force since the initial survey took place. The BOM team regularly checks the London Gazette for new speed limit Orders introduced by the London Boroughs and by TfL, before going out on-street with Tablet PCs in order to survey the area and ensure that the new Orders have been implemented. This method ensures the greatest level of accuracy.

caption|TfL LDSLM speed limit changes are based on terminal sign locations
TfL LDSLM speed limit changes are based on terminal sign locations

 

Testimonial

Click here to view all selected case studies.

© Buchanan Order Management 2022

The Barn
Enborne Gate
Newbury
RG14 6AL 

 

Tel: +44 (0)1635 290790

 

enquiries@buchananorders.co.uk

About us

Contact

Terms and conditions

Sitemap

Privacy policy

Reset cookies

 Web design by Wordspree

 

© Buchanan Order Management 2022

 

The Barn
Enborne Gate
Newbury
RG14 6AL 

 

 

Tel: +44 (0)1635 290790

 

enquiries@buchananorders.co.uk

 

About us

Contact

Terms and conditions

 

Sitemap

Privacy policy

Reset cookies

 
Web design by Wordspree