View Full Version : SBS Transit's Intelligent Route Information System (iris)
^tamago^ January 21st, 2007, 05:48 PM This "next-bus" service, which tells you how long more you have to wait for your next bus, is now online from today and the results are quite promising.
The service, which rides on GPS technology, not only updates fare stages automatically, but now also sends the data back to SBST's control centre so that they can more accurately predict the arrival time based on the exact location of the next bus.
The free service may be accessed at http://www.sbstransit.com.sg/. Mobile users can check out http://www.sbstransit.com.sg/mobileiris/ where you can check the timings physically on the roads.
^tamago^ January 21st, 2007, 05:49 PM http://img187.imageshack.us/img187/921/picture19yw.png
ignoramus January 22nd, 2007, 05:55 AM This "next-bus" service, which tells you how long more you have to wait for your next bus, is now online from today and the results are quite promising.
The service, which rides on GPS technology, not only updates fare stages automatically, but now also sends the data back to SBST's control centre so that they can more accurately predict the arrival time based on the exact location of the next bus.
The free service may be accessed at http://www.sbstransit.com.sg/. Mobile users can check out http://www.sbstransit.com.sg/mobileiris/ where you can check the timings physically on the roads.
With this technology now in place its actually possible to have those bus arrival timings real time at major bus stops like in Europe and Taiwan (though I still prefer the MOBILE IRIS method because it gives you all the info without the need to place LEDs in bus stops, resulting in possible fare hikes. And everyone has a mobile nowadays.)
I wished SMRT would have it tho. JUST MERGE THE TWO BUS OPERATORS DAMMIT!
ignoramus January 22nd, 2007, 06:12 AM When this message appears, it is because we have detected that the bus has not moved more than 500m over in the past 5 minutes. It is likely that this bus is held up by traffic or there has been an incident causing the bus to be stationary.
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:
Heavy boarding and/or alighting activities which require the buses to stop for a longer period of time.
Incidents such as a fight, molest or even medical emergency on board may cause buses to be delayed and possibly even disrupt a journey.
Bad weather condition where Bus Captains have to exercise greater caution when travelling on the road for the safety for both passengers and other road users.
THIS IS DAMN COOL! The system is smart. I like playing with the system (wasting online bandwidth and resources).
SMRT has nice in bus LED displays. SBS has nice WAB and TV mobile and iris. Imagine a merged company having BOTH! It will then at least resemble in some ways like a world class bus operator.
^tamago^ January 22nd, 2007, 04:20 PM I think panels at popular bus stops are alright. It is workable, though some services are not giving logical arrival times at certain bus stops. I'll do more investigations and play with my laptop at the bus stops. :)
heirloom January 31st, 2007, 05:05 AM its not smart enough if i have to enter individual bus stop numbers.
^tamago^ January 31st, 2007, 03:36 PM its not smart enough if i have to enter individual bus stop numbers.
the interface is so cos they want to reduce data transmission costs for mobile users....
lambo.lionel October 16th, 2009, 02:18 PM I suspect that the IRIS is linked to a SBS Transit GPS system that is placed inside the bus for bus driver's reference, which has all the bus timetables entered. The special thing about the machine is that it tells bus drivers how early or late they are.
^tamago^ October 16th, 2009, 06:39 PM I suspect that the IRIS is linked to a SBS Transit GPS system that is placed inside the bus for bus driver's reference, which has all the bus timetables entered. The special thing about the machine is that it tells bus drivers how early or late they are.
Yes absolutely you're right. The smaller console for this purpose is named the DDU, part of the whole AVMS setup.
A audible alert and light on the DDU inidicates whether the driver is ahead or behind schedule, while the display tells the driver exactly how many minutes he is off from the schedule. The DDU also acts as a phone link between OCC and the bus.
SMRTB's IBOS has a similar function, but it does not use any additional hardware. Everything is built into the fare console IDFC through software modifications. This makes telling exactly how many minutes, or even whether he/she is late or early, difficult to comprehend from the smaller words in the fare console display. But the whole setup still allows arrival times to be made available to SMRTB's OCC and selected LTA arrival times panels.
deskoh91 October 17th, 2009, 04:06 AM Yes absolutely you're right. The smaller console for this purpose is named the DDU, part of the whole AVMS setup.
A audible alert and light on the DDU inidicates whether the driver is ahead or behind schedule, while the display tells the driver exactly how many minutes he is off from the schedule. The DDU also acts as a phone link between OCC and the bus.
SMRTB's IBOS has a similar function, but it does not use any additional hardware. Everything is built into the fare console IDFC through software modifications. This makes telling exactly how many minutes, or even whether he/she is late or early, difficult to comprehend from the smaller words in the fare console display. But the whole setup still allows arrival times to be made available to SMRTB's OCC and selected LTA arrival times panels.
since we are at the DDU, how does the light work? red for early, yellow for late and nothing if on time?
^tamago^ October 17th, 2009, 04:31 AM since we are at the DDU, how does the light work? red for early, yellow for late and nothing if on time?
Yes. :cheers:
High-pitched beep, red and positive minutes for early. Low-pitched beep, yellow and negative minutes for late.
deskoh91 October 17th, 2009, 04:32 AM Yes. :cheers:
High-pitched beep, red and positive minutes for early. Low-pitched beep, yellow and negative minutes for late.
thanks for clarifying. never really managed to see the minutes though. blocked by the bluish plastic meant to deter prying eyes like mine :lol:
^tamago^ October 17th, 2009, 04:36 AM a snapshot of the capabilities of the tracking system....
http://img48.imageshack.us/img48/9498/09048.png
deskoh91 October 17th, 2009, 06:23 AM a snapshot of the capabilities of the tracking system....
http://img48.imageshack.us/img48/9498/09048.png
what does the 824 and 846 mean?
^tamago^ October 17th, 2009, 04:48 PM what does the 824 and 846 mean?
bus number....
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