Strategy Behind the Standard
Raised table junctions are effective in slowing turning movements and convey to motorists not to expect to have priority over other road users. Research has shown that these features, especially when used alongside other street enhancements, can improve the safety of cycling. A reduction of around 30% in cycle collisions was found at over 1,000 sites in London where raised table junctions were implemented. (TRL report PPR092: Effect of Side Raised Entry Treatments on Road Safety in London, 2007).
Raised entry treatments to side roads adjacent to a main road are therefore recommended for a cycle route on the main road. However, all vertical forms of traffic calming, even well designed examples, add some discomfort for cyclists riding over them. Where a cycle route crosses a main road that is also well used by cyclists, a balanced view needs to be taken of the benefits they offer to cyclists moving in one direction relative to the downsides for those moving in the other.
Best Practice Guidance to be used by Essex Highways
Cycle Infrastructure Design LTN 1/20 – Chapter 10.4.6
London Cycling Design Standards – Chapter 3.5.2
ECC Recommendations
If the raised table is along a bus route consultation must be carried out with passenger transport.
Essex encourages the use of raised table junctions where appropriate. Their implementation should be assessed on a case by case basis.
How the Standard Should be Applied
Raised tables must comply with the relevant legislation:
DfT authorisation will be required to place toucan and parallel crossings on road humps.
Level changes on the main route such as raised tables and humps are not necessary if the guidance on reducing traffic volumes and/or creating separated space for cyclists has been properly followed.
Best Practice Example in Harlow