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Expressway Monitoring Advisory System (EMAS) is an intelligent incident management tool that manages traffic along our expressways. It detects accidents, vehicle breakdown and other incidents promptly, ensuring fast response to restore normal traffic flow. It also provides real-time information of travelling time from the entry point of expressway to selected exits.

What are the benefits of EMAS?

EMAS brings these benefits to motorists:

  • Provides quick response to motorists who need help along expressways
  • Minimises congestion that may arise from incidents through the display of messages to the public to avoid incident locations
  • Enhances overall safety on expressways
How does EMAS work?

Fast response to incidents

Operations Executives at the control centre pan the surveillance cameras frequently to look out for incidents such as vehicle breakdown and congestion. When they detect an incident, they will activate the vehicle recovery crew to the site. The recovery crew arrives within 15 minutes. At the site, they help the motorists and remove any obstructions to restore traffic flow to normalcy.

The recovery crew will also tow the broken-down vehicle to the nearest designated carpark, free of charge. With effect from 18 January 2006, it is an offence if a vehicle owner refuses to allow his vehicle to be towed away by the recovery crew, even if the owner is waiting for his own tow truck service that has yet to arrive. This is to minimise the congestion and inconvenience caused to other motorists.

Working closely with the vehicle recovery service crew, a team of LTA Traffic Marshals (who are Auxiliary Police Officers) carry out On-Scene Management duties like traffic control and evidence preservation for accidents involving minor injuries. This is to improve on the accident clearance time, especially for minor accidents. The Traffic Police (TP) will continue to handle all accidents involving injuries and fatalities as well as enforce traffic offences.

Keeping other motorists informed

Motorists are informed of the traffic condition so that they can drive more carefully as they approach the incident site or choose another route. Electronic signboards along the expressways and adjacent major roads display messages on the traffic situation ahead. Traffic information is also sent to TrafficWatch (MediaCorp Radio) for broadcast.

Enhancement of EMAS

Since Nov 2014, motorists have been able to progressively get real-time traffic updates via both textual messages and simple graphics display up to seven colours, i.e. green, red, blue, cyan, purple, yellow and white, on the enhanced electronic signboards (also known as Variable Message Signs or VMS) along the following expressways:

•    Ayer Rajah Expressway (AYE)
•    Bukit Timah Expressway (BKE)
•    Central Expressway (CTE)
•    East Coast Parkway (ECP)
•    Kranji Expressway (KJE)
•    Pan Island Expressway (PIE)
•    Seletar Expressway (SLE)
•    Tampines Expressway (TPE)

In-addition, colour-coded travel time information are displayed on the enhanced electronic signboards located prior to entry and along the above expressways. The enhancement of the signboards improves the readability of the messages and allows motorists to make better informed travel decisions through graphical and colour representations.

The enhanced electronic signboards are part of the overall upgrading work for the entire EMAS on the expressway network that LTA is undertaking. The signboards along the expressways have been enhanced and the entire enhancement project has been completed.

Expanding coverage to Arterial Roads

Besides upgrading the existing EMAS signs on expressways, LTA has also completed the extension of EMAS scheme to ten major arterial road corridors with the installation of 161 new electronic signboards, also known as EMAS Arterial Variable Message Sign (AVMS). The extension of the EMAS coverage to major arterial road corridors brings about better information dissemination and, consequently, better traffic flow on the road network island-wide.

Last Updated: 24 October 2017




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