If you pay attention to the posters in Taipei's MRT, you've probably noticed that the MRT's routing will be rearranged when the Xinyi Line opens sometime over the next month. Specifically, the current Beitou-Taipower Building line will separate from the Danshui-Xindian Line at Chiang Kai-shek Memorial Hall and run along the new Xinyi Line, while the Xiaonanmen Line will be extended from Chiang Kai-shek Memorial Hall south to Taipower Building. The routing in the MRT's original plan was a bit simpler, with the Xiaonanmen and Xindian Lines becoming one line, while the Danshui Line would be extended along the Xinyi Line. This routing would have let the Xinyi Line run at full capacity, but it would also force Xindian Line passengers bound for stations on the Danshui Line to transfer, so the more complicated routing was chosen.
Now the MRT has announced that the Xinyi Line's route will change after 11PM. To avoid having too many trains traveling on the elevated section of the Danshui Line and disturbing nearby residents, after 11 the Xinyi Line will terminate at Taipei Main Station. The idea (I think) is that both the Xinyi Line and the whole of the Danshui-Xindian Line will run at 12 minute headways, but if they merged the headways would shrink to 6 minutes.
If this is the case, it means that once the Xinyi Line opens, service on the Danshui Line will actually be worse than it is now. Now the section of the Danshui Line between Taipower Building and Beitou has 6 minute headways after 11PM, with this new routing headways will go up to 12 minutes- not a small difference. Moreover, having two different routings is confusing- navigating a mass transit system should be as intuitive as possible; having two routings for different times of day will require riders to pay extra attention. While I'm usually sympathetic to quality of life issues, it does strike me as a double standard: the MRT is very sensitive to noise complaints despite not being especially loud, but neither the Taipei nor the New Taipei governments seem interested in quieting down scooters, and New Taipei sometimes even does road construction late at night to avoid disrupting traffic. Furthermore, there has been a rail line along the same route as the Danshui Line for nearly 100 years now, so it is worth asking why people who are bothered by the sound of trains moved there in the first place.
Showing posts with label headways. Show all posts
Showing posts with label headways. Show all posts
Wednesday, November 13, 2013
Tuesday, September 17, 2013
Squeezing Yet More Trains onto the Bannan Line
The United Daily recently had an interesting report about how the MRT has saved time during rush hour on the Bannan Line. Every weekday between 8 and 9 AM the MRT has stationed workers on the Bannan Line platforms at Zhongxiao Xinsheng and Taipei Main whose sole task is closing each train's doors. This might sound wasteful, but the Taipei Rapid Transit Corp. claims it has allowed them to run two more trains during rush hour, permitting 29 trains per hour which can fit 3,000 more people, and reducing headways by fifteen seconds, to 2 minutes and 5 seconds.
Typically, after an MRT train stops, the driver steps out of the cab and only reenters once they see everyone has boarded the train. According to Tan Gwa Gwang, president of the Taipei Rapid Transit Corp., the TRTC determined that this takes 5 seconds. To save this time, the TRTC stationed staff near the driver's cab to watch the monitors showing passengers boarding and exiting the train, so the driver doesn't need to leave the cab. When the warning alarm sounds, they reach into the cab and place their finger on the door closing button. Once the alarm stops and there are no more passengers entering or exiting the train, they press the button and motion to the driver to leave the station.
Last year the TRTC had already saved 10 seconds per train by adding crowd control staff to Zhongxiao Xinsheng and Taipei Main's platforms.
Typically, after an MRT train stops, the driver steps out of the cab and only reenters once they see everyone has boarded the train. According to Tan Gwa Gwang, president of the Taipei Rapid Transit Corp., the TRTC determined that this takes 5 seconds. To save this time, the TRTC stationed staff near the driver's cab to watch the monitors showing passengers boarding and exiting the train, so the driver doesn't need to leave the cab. When the warning alarm sounds, they reach into the cab and place their finger on the door closing button. Once the alarm stops and there are no more passengers entering or exiting the train, they press the button and motion to the driver to leave the station.
Last year the TRTC had already saved 10 seconds per train by adding crowd control staff to Zhongxiao Xinsheng and Taipei Main's platforms.
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