SINGAPORE - Motorists using the Ayer Rajah Expressway (AYE) and Kranji Expressway (KJE) will get clearer travel information, such as colour-coded journey times, through new electronic signboards that will be launched on May 17.

The Land Transport Authority (LTA) said on Thursday that it has completed the installation of enhanced Expressway Monitoring Advisory System (Emas) signboards on the two expressways.

"The graphic and colour enhancements, as well as display of travel time along the expressways and arterial roads, improve the readability of messages so that motorists can make more informed travel decisions," the LTA added.

Through these display boards, motorists will get information about travel times prior to entering the AYE and KJE, as well as along the expressways.

Travel times will be colour-coded, with green indicating up to 50 per cent more travel time than normal, yellow indicating between 50 to 125 per cent more, and red indicating over 125 per cent more.

The new signboards along the AYE and KJE are part of the overall upgrading work for the Emas system.

The enhanced signboards along the Central Expressway and East Coast Parkway were completed in November 2014, LTA said, with upgrades for the other expressways expected to be done by 2017.