About NextBus Predictions
How
to use the system
Real-time arrival information from NextBus can be obtained from signs
installed at transit stops, from computers with access to the World Wide
Web, and from cellular telephones and other wireless devices.
To obtain
information via the Web or from wireless devices, specify which stop you
want information for. The information will then be automatically displayed
and updated every few seconds.
You may
add the page to your "Bookmarks" or "Favorites" so you can get back to
it quickly.
Keep in mind:
- Allow
enough time to get to your stop.
- Traffic
and emergencies can affect the accuracy of predictions.
- NextBus
supplies only the predictions.
- Contact
the transit operator for any other questions or problems.
How
does it work?
NextBus uses Global Position Satellite (GPS) technology and advanced computer
modeling to track buses and streetcars on their routes. Taking into account
the actual position of the transit vehicles, their intended stops, and
the typical traffic patterns, NextBus estimates the bus arrivals with
a high degree of accuracy. This estimate is updated constantly as the
vehicles are tracked. The NextBus system is covered by U.S. Patents
6,006,159
and 6,374,176.
The system is also produced under license from ArrivalStar, Inc. U.S.
Patents 5,623,260;
6,411,891;
6,317,060;
6,415,207;
6,313,760
and 6,278,936.
How
accurate are the predictions?
The accuracy of the predictions vary depending upon many factors including
changes in traffic patterns, accidents, Internet traffic, etc. Therefore
NextBus cannot specify a precise overall accuracy. In general though,
the margin of error is less than one minute
for
predictions
of five-minutes
or less. For
ten-minute predictions, the margin of error is less than two minutes.
We have biased the predictions slightly early to avoid people missing
buses. NextBus is confident that you will find the system accurate enough
to be very helpful.
What
are the benefits of the system?
The NextBus system puts the transit rider in control. Even when you
know what the schedule is, there are any number of reasons that vehicles
may not arrive when expected. Traffic variations, breakdowns, and the
day-to-day problems faced by any transit company can delay or completely
interrupt service.
By using
the NextBus system to determine when the next vehicle is going to arrive,
the rider doesn't need to wait an indeterminate amount of time at a possibly
unpleasant or unsafe stop. Instead the rider can make an informed decision.
If the vehicle will not be arriving for an extended period, the rider
can go into a store, read the newspaper, or even take another mode of
transportation.
The NextBus
system also allows the user to obtain real time arrival information remotely.
Riders can determine exactly when to leave home or the office in order
to meet the bus -- virtually eliminating waiting time.
Why
isn't it available for my bus?
Your transit agency needs to pay for the cost of the NextBus system.
The number of agencies that provide NextBus predictions is rapidly growing
but the technology is still relatively new. If you would like to have
the service provided for your system, contact your transit agency and
tell them what a benefit the NextBus system would provide for their passengers.
Why
aren't predictions made for all vehicles?
Some transit agencies have not yet purchased the tracking devices for
all of their vehicles. When untracked vehicles are run on a route, real-time
arrival predictions cannot be made.
Who
pays for this service?
The signs at the transit stops and the needed tracking hardware is
paid for by the transit agencies. No costs are passed on to the users
except for those wireless users who pay for access by the minute.
What
future capabilities do you expect to provide?
In the near future we will provide predictions via additional wireless
devices. We will also provide alerts that will notify you automatically
via your computer or wireless device when the NextBus is within a specified
distance. That way you will know exactly when to leave your home or office
in order to catch the next bus.
What
is your advertising policy?
NextBus has adopted a policy not to accept Internet advertising for certain
classes of products that our transit partners and/or we would not view
as socially responsible. Specifically excluded are sexually oriented advertising,
tobacco advertising, advertising for fire arms, advertising for alcoholic
beverages, and advertising intended to promote any illegal substances.
|