Technical problems with signalling and equipment

Traffic delays on Chiswick High Road are causing continued frustration to local residents as work on upgrading the junction with Turnham Green Terrace has overrun its twelve week completion schedule.

The £207,000 works were supposed to be finished in mid-August but a number of difficulties, including traffic signalling, have caused delays to the works and left residents angry.

Cllr Todd said he had been informed today (Sept 23) that according to TfL a delay to the completion of works was caused by the incorrect installation of two lamp columns too far from the pedestrian crossing points.

Road resurfacing and traffic signals commissioning at this site should be completed early next week, he was told in response to his query.

Councillors and local residents at Tuesdays (Sept 24) Chiswick Area Forum meeting will be briefed by officials on the reasons for the delays in finishing the work which started in May.

It is understood that delays resulted from a combination of factors, including a delay in securing bespoke traffic and lighting columns as well as problems with signalling equipment which proved to be unreliable. Delays increased where timings were incorrectly changed.

The work programme includes an upgraded pedestrian crossing with islands, new carriageway surface at the junction, new traffic signal equipment and timings, replacing the outdated equipment with new combined lighting and signal columns. Changes include:


- Kerb line changes to allow for a dedicated 1.5m westbound cycle lane, to accommodate future CS9 alignment (subject to approval from TfL)

- New advance stop lines (ASLs) for cyclists on Chiswick High Road and Turnham Green Terrace and changes in line with the proposed Cycle Superhighway 9 (CS9) by TfL, between Hyde Park Corner and Hounslow town centre.

- Two eastbound traffic lanes on the approach to the junction, to allow for a dedicated left turn lane into Turnham Green Terrace, and minimise delays for eastbound traffic.

- New paving on footways adjacent to the junction and general decluttering (minimizing number of posts, signs etc.)

September 23, 2013