When "No current prediction" shows up instead, it means that the bus service is not operating at that point in time. Do check the operating details for the service to find out more.
iris NextBus provides commuters a convenient way to check the next bus arrival time at the office or at home before hitting the bus stops or on the go using portable devices with web access such as GPRS-enabled phone, WIFI-enabled laptop or PDA.
Figure 1: iris NextBus Architecture Overview
Without dedicated bus lane, we have to share the road with other motorists and this can result in our buses travelling at a slower speed if the road is heavy with traffic. Other possible causes of delays are:
How do I access iris on the Mobile? To access iris via GPRS, logon to www.sbstransit.com.sg/mobileiris for mobile phones or http://www.sbstransit.com.sg/iris3/pdanextbus.aspx for PDAs. After inputting these addresses onto your mobile phones or PDAs, you will be given three options. You can query either for bus arrival time at bus stop or bus departure time from an interchange or how to get from point-to-point using the Journey Planner. NextBus Arrival at bus stops For bus arrival time at bus stop, you need to input the desired service number and bus stop number where you would like to catch the bus. If you do not know the bus stop number, a bus stop number search function is available under the "Not sure, click here". Under the bus stop search function, you need to input the road name of the bus stop where you are catching the bus. After which, you have to select the bus stop and the bus service from the list of bus stops and services provided. Screen images shown above may differ from actual ones. NextBus Departure at interchange For bus departure time at interchanges, you need to input the service that you are interested in and select the bus interchange where you are catching the bus. Screen images shown above may differ from actual ones. Depending on whether you access this service on WiFi or via GPRS, different charges will apply. If you are a regular user of certain bus services at a certain bus stop or interchange, you may wish to bookmark the result page after you have performed the query to save on data transmission charges when you next perform the query. Journey Planner To find out how to get from where you are or from a particular bus stop to your destination or a bus stop near your destination, you will need to input the bus stop number of the bus stop where you will be starting your journey and that of the bus stop at your destination. If you do not know the bus stop number of either the starting or destination bus stops or both, a bus stop number search function is available under the "Not sure, click here". Under the bus stop search function, you will need to input the road name of the bus stop where you are catching the bus. After which, you will need to select the bus stop and the bus service from the list of bus stops and services provided. Screen images shown above may differ from actual ones. Depending on whether you access this service on WiFi or via GPRS, different charges will apply. If you are a regular user of certain bus services at a certain bus stop or interchange, you may wish to bookmark the result page after you have performed the query to save on data transmission charges when you next perform the query.