Signalised Pedestrian Crossings

Signalised pedestrian crossings are used to facilitate the time-sharing of road space between motorists and pedestrians so that pedestrians can cross the road safely. Each of these two groups of users is allocated the right-of-way alternatively with the use of traffic signals. The amount of time allocated to motorists and pedestrians is based on the principle of balancing their conflicting demands. The demand for vehicular movement is detected through the sensors placed on the road pavement.

Pedestrians register their intent to cross the road by activating the push-button on the traffic light pole. The activation of the push button tells the system that someone is waiting to cross the road, and traffic will then be stopped to allow this. Pedestrians can proceed to cross the road when the green man comes on.

 

It's a Balance between Safety & Efficiency

The Land Transport Authority receives more than twenty requests for new signalised pedestrian crossings each month. LTA has to balance the needs of pedestrians and motorists when reviewing these requests. That's because more signalised pedestrian crossings means that motorists would have to stop more often, thereby reducing the efficiency of our road network. LTA has to consider factors such as the pedestrian volume, road design, the site and its constraints before deciding to install a signalised pedestrian crossing.

Photo of Signallised Pedestrian Crossing

 

Length of Green Man Time

When determining the length of green time for pedestrians, it's again a matter of balancing the safety of pedestrians and keeping our roads smooth-flowing.

The length of green time is determined by many factors, including the length of the pedestrian crossing, the volume of vehicles and the number and composition of pedestrians.

There are two components to the green man time, namely the steady green man and the flashing green man. The steady green man is a pre-defined time period that allows all pedestrians waiting at the kerbside to step off and commence their crossing action. The flashing green man is the duration required by a typical pedestrian to complete his crossing action from one side of the road to the other. Thus, pedestrians who arrive at the crossing location after the green man has started to flash would probably not have sufficient time to cross the road if they attempted to do so.

As there is a need to balance the efficient operation of the road network as well as to provide a safe crossing environment, it is not practical to have the green man activated immediately after the push button has been pressed each time. There will be some delay in this activation to ensure that traffic flow is not unduly interrupted. This is controlled by the computerised traffic signal system known as the Green Link Determining System or GLIDE for short. This system aims to optimise the efficiency of our road network by adjusting green time at junctions according to the vehicle and pedestrian volume.

 

Pedestrian Audio Signal

The pedestrian audio signal is the beeping sound pedestrians hear at pedestrian crossings. Traffic lights equipped with the audio signal function emit different audio signals to help the visually handicapped cross the road.

The volume of the audio signals is adjusted based on the noise level of the surrounding environment.

 

Integrated Pedestrian Countdown Timers

photo of countdown timer

IPC timers indicate the amount of time left in the pedestrian crossing phase. These are usually installed at signalised pedestrian crossings near schools and at busy junctions. Pedestrians should not start to cross the road when the green man is flashing, as he would not be able to complete the crossing.

Did You Know?

 

Busiest Pedestrian Crossing in Singapore
Longest Pedestrian Crossing

The busiest pedestrian crossing is located at Orchard Road leading from Ngee Ann City to Paragon. It is used by an average of 8,700 pedestrians per hour every Saturday.

The longest pedestrian crossing is located outside Novena Square Shopping Centre at the junction of Thompson Road and Moulmein Road. It is 47 metres long.