They are the regular metered spots, you just pay w/ the app on your phone instead of putting quarters in the meter... The meters have stickers with a Zone on them, you punch in that zone number (they get very specific; zone 240 is Lincoln Street between Kneeland and Beech) and your license plate # and you're good.
App store link: https://itunes.apple.com/us/app/parkboston/id953579075?mt=8
Android: https://play.google.com/store/apps/details?id=com.passportparking.mobile.parkboston&hl=en
It's called ParkBoston
Onko Andropas parempi kuin Bussit? Siitä en ole ainakaan tuoreena Android-käyttäjän löytänyt mitään valittamista. Suosittelen myös Sporat.fi -sovellusta, joka näyttää reaaliajassa raitiovaunut kartalla. https://play.google.com/store/apps/details?id=fi.sporat
I used: GPS Speedometer because it was the only one that offered a white background.
I also used DigiHUD and found the same thing but only around 66kph (it was too dark so I pulled over and found the first one so i could test at 100 ^^^130 and read it with a quick glance.
Lead up:
Before I had the tank bag / app I did notice that traffic was crazy fast, I'd merge in and even the slow lane was 10 over... I figured it was just a good ride but then i pulled up beside a Civic and found that his HUD said ~120 and mine said ~130...)
From what I've noticed, countdown data seems to be relatively accurate based on a train's location, notwithstanding other factors. Think of this like how a 15 minute car ride might take you an hour with bad traffic. If the train were able to proceed from station A to station B, it would take exactly x minutes. However, if for some reason the train is delayed (someone holds a door open, train is extra crowded so it stays at the station longer, etc.) the predictions won't be accurate.
I'm sure that disabled trains only compound these inaccuracies greatly. Without knowing how the prediction software works, it's really impossible to guess exactly how a disabled train mucks up the system. Prediction software is very hard to do as it is. How do you know when the next train is coming? Is it based on distance? Is it based on a time average? Do you add time to accumulate for the extra rush hour crowds? Do you ever bump the time up? How reliable is the hardware? At what point do you take a disabled train off of the prediction board? Ad infinitum.
Personally, I recommend using an app or website that shows you where the trains are, not how long until they arrive. My app, MBTA GPS not only shows predictions, but also shows you where on a map the trains are. Sometimes I find this more helpful than the predictions; if a train hasn't move in 5 minutes, something is probably wrong with the train.
It would be interesting to have one of the MBTA software devs on here to answer questions about the prediction software and how it works.
Edit: To summarize my ramblings: I guess my advice for you would be to take the prediction information with a grain of salt. Just know that, for a variety of factors, accurate predictions are very hard to make.