Green Line Type 9 Thread

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Re: Green Line Type 9 Thread

Postby Type7trolley » Wed Feb 27, 2019 7:02 pm

The Type 9 has cameras on both sides which I believe are displayed in the cab, so the mirror seems somewhat redundant.

Even if the mirror could be eliminated, the door cycle time will always be slower than other cars. Aside from the obvious factor of the single panel doors covering more distance to close, the end doors also travel at a slower speed than most two part sliding doors. They cannot simply be sped up to decrease dwell times, as APTA specifies maximum door closing force and a larger single piece door, having more mass, must move more slowly to impart the same amount of force as a smaller, lighter door panel. I wonder if the tiny windows on the front doors are an attempt by CAF to mitigate this. Glass is heavy.

I am sure that when Boston ordered all of its rapid transit equipment with single panel sliding doors in the 1910s & 20s, this was not a consideration.
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Re: Green Line Type 9 Thread

Postby jwhite07 » Mon Mar 18, 2019 8:01 am

According to NETransit, 3901 has been accepted for service. Hopefully they'll see more use in rush hours now that there is a 2 car train available.
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Re: Green Line Type 9 Thread

Postby diburning » Mon Mar 18, 2019 4:39 pm

I spotted the pair yesterday testing on the Cleveland Circle branch. 3901 was leading outbound, with the skirts removed, and 3900 was trailing, with skirts installed.
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