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Curve alignment markers (CAMs) help to define road bends while vehicles travel along them. However, at locations where the centre median width is small or absent, CAMs may be not effective. As they are placed flat on the concrete wall due to site constraints, their visibility is reduced.

As such, fluorescent yellow green reflective sheets with black arrows (wavelines) are proposed at locations where CAMs are not effective or suitable. Its unique shape - repeated raised strips - provide great brightness across a wide range of angles. The waveline is designed to provide high visibility during both daytime and nighttime.

Aside from the trial at CTE (AYE) exit to Havelock Road and Merchant Road entrance to CTE (AYE), another three locations will have the waveline implementied:

• Upper Bukit Timah Road (near Rail Mall)
• CTE (SLE) to TPE (PIE) interchange
• Lentor Avenue slip road into SLE (CTE) (New!)

Feedback were received regarding the sharp edges of curve alignment markers (CAMs) posing potential hazards to pedestrians and/or cyclists.

To reduce this safety risk, the edges of CAM have been replaced with aluminum U-frames, which is also a more cost-effective solution.

These pedestrian-friendly curve alignment markers will be put in place at:

• Kampong Java Road (Trial)
• Changi Coast Walk (Trial)
• Ghim Moh Road
• Lornie Road
• Marymount Road
• Mountbatten Road
• Shan Road
• South Bunona Vista Road
• Whampoa East
• Yuan Ching Road
• Mandai Avenue

A pedestrian crossing sign indicates the position of a designated crossing clearly to pedestrians and motorists. The blue signs stand out from the surrounding as they display good colour contrast against the greenery and the orange lights from lamp posts.

Together with the flashing yellow beacons, they further enhance the visibility and alert motorists of the pedestrian crossing.

Pedestrian crossing signs have been implemented along slip roads connecting to expressways. They will be extended to roads with speed limits of 60kph and above by year 2016.

Reboundable Bollards (RB) are delineators used for alerting motorists at the start or end of centre dividers located after a bend or crest. They can withstand hits and reduce the chances of a missing delineator after being hit, thus enhancing road safety.
A larger surface area using retro-reflective sheeting is also beneficial to the increasingly ageing population.
The following locations have been installed with RB on 26 Oct 2010 as pilot schemes for evaluation:

• East Coast Park Service Road (next to Macdonald's)
• Bukit Batok Street 32

For motorists driving at night - especially elderly drivers who may have some difficulty with night vision - it is sometimes difficult to make out zebra crossing stripes on the road.

To ensure that pedestrian safety is not compromised, the LTA is embedding solar-powered lights in the road at selected zebra crossings, called flushed LED road studs, which will emit flashes of light at night so motorists will be aware of the pedestrian crossing.

These lights are also safe for motorists as it protrudes less than 4 mm from the road surface.

The flushed LED road studs are currently on trial until October this year at zebra crossings at Marine Terrace and Bukit Merah View, where there is a higher proportion of elderly residents.