I didn't realize that Swiss trains apparently also adhere to the "schedule for 80% of capacity rule".
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I didn't realize that Swiss trains apparently also adhere to the "schedule for 80% of capacity rule".
Apparently trains in Switzerland go around 80% of the top speed possible on the track. The 20% overhead is used to make up time in the case of delays.
The thinking is: stable and predictable operation is more important than going faster. Because the cost of passengers regularly missing layovers is much higher than the benefits of trains being 20% faster.
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I didn't realize that Swiss trains apparently also adhere to the "schedule for 80% of capacity rule".
Apparently trains in Switzerland go around 80% of the top speed possible on the track. The 20% overhead is used to make up time in the case of delays.
The thinking is: stable and predictable operation is more important than going faster. Because the cost of passengers regularly missing layovers is much higher than the benefits of trains being 20% faster.
@yosh this is something ive felt intuitively as well, but is there research to specifically the 80% number here?
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@yosh this is something ive felt intuitively as well, but is there research to specifically the 80% number here?
@ShadowJonathan@tech.lgbt @yosh@toot.yosh.is Not specifically research, but a lot of Lean Manufacturing ideologies use the same principle and that's where I assume this comes from. For factories it operates under the same idea - a manufacturing line which is run under full capacity all the time has no slack in its budget to handle routine maintenance, floor rearrangements, slowdowns, or mistakes.
There's a lesson here I've been trying to beat into some of my managers heads for decades at this point... -
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