What are Subway Performance Metrics?

what are subway performance metrics performance metrics are like a report card for the subway we use them a track progress towards our goal of providing a great subway service for New York we think these metrics capture the customer experience of using the system and we post them on our dashboard so that everyone can see how we're doing and just like a report card in school when we get grades that aren't as good as they should be these metrics help us understand what we need to improve major incidents is a metric that focuses on the most disruptive causes of subway delays when something happens in our system that causes 50 or more trains to be delayed that's a major incident we track these incidents by costs and we use that information to work on solutions to reduce or eliminate them major incidents are the worst of the worst and we hate them as much as you do service delivered is a metric that reflects the amount of train service provided to customers in a given period we measure it by counting the number of rush-hour trains entering the Manhattan business history and comparing that to what was scheduled for example we schedule 27 trains per hour on the number 7 line into Manhattan during the morning peak hour if only 24 actually make it then our service delivery for that period is 88.9% additional platform time measures how much longer customers wait for a train than they normally should we calculate this metric using the data from metro cards and our automated train tracking systems how does this work say you've entered a station with your MetroCard at exactly 9:00 a.m. you wait on the platform for the first train that arrives which departs the station at 9:05 a.m. not too bad right but if that morning your train should have picked you up at 9:03 a.m. then you just experienced two minutes of additional platform time as you'd guessed our goal for this metric is zero on board the trains it's the same thing if your train trip should take 22 minutes according to our schedules but your trip actually took 25 then you've experienced three minutes of additional train time our goal of course is zero main distance between failures measures how reliable our rail cars are we calculate this metric each month by averaging the number of miles each car runs before it breaks down a breakdown is any time a car failure makes a train late by more than five minutes usually but not always MD bf is correlated with the cars age as you would expect the older the train is the more likely it is to break down we want our trains to run on time but we also want our trains and stations to be clean and functional that's why every weekday our survey teams roam the system checking stations and subway cars rating them on condition and cleanliness are the seats clean on the train are the proper Maps hanging in the station are the MetroCard vending machines parking right these are just some of the things our surveyors check for elevators and escalators are an important part of the station environment and we want them to be available for use as much as possible that's why we try to schedule maintenance during off-peak hours and make it a priority to despatch work crews as soon as we can when something goes wrong we measure performance as the percentage of time an elevator or escalator is up and running and ready to carry passengers weight assessment is the first of our two legacy metrics we call these legacy metrics because we think our near metrics do a better job of measuring what really happens in the subway weight assessments purpose was to measure how well trains are keeping to their scheduled separation between each other it's calculated by measuring whether the spacing between trains is no more than 25% of the scheduled headway which is transit speed for how often trains come got that most people don't frankly and that's why we think our new metrics do a better job terminal OTP measures the percentage of trains that arrived at the end of their line within five minutes of their scheduled time it's an easy metric to understand but it doesn't present the full picture of how well a subway line is performing for everyone who rides it terminal OTP is also limited because it's pass/fail metric that doesn't measure the severity of delays our scheduled end to end running times can range from a minute and a half on the time square shuttle to 100 minutes on the a train but the same 5-minute standard applies to all and that's what subway performance metrics are and how they keep the MTA a new thing learn more about our metrics at MTA dot info / dashboard

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Keywords: mta, nyc, ny, transit, bus, train, railroad, bridges, tunnels, transportation

Id: 5qaJh0MVIn4

Length: 5min 1sec (301 seconds)

Published: Wed Sep 27 2017