T
telematics
Integration of wireless communications, vehicle monitoring systems, and GPS location devices.
template
- Mold or pattern of a master record for subscriptions or runs. Typically used in PASS.
- Schedule type associated with a day of the week. For example, Monday. Typically used in PASS.
terminal point
Node or transit terminal at the end points of a run.
terminus
- In blocking, the end of a plot. For example, an end-of-plot garage.
- See terminal point.
threshold
Minimum amount for an event or consequence to be triggered. Typically used in Service Infractions.
through line
When two lines are defined as one line for the purposes of scheduling but must be distinguished for reporting purposes, the single composite line is called a through line. For example, if lines 004 and 014 are scheduled as one line but statistics must be determined for the individual lines, a through line is created.
See also linked line.
timed transfer
When two bus trips scheduled to connect with each other meet.
Paddle notes for both operators include a comment on which route they're meeting. Operators must wait a defined amount of time for the connection and call Dispatch if the other bus doesn't show up.
See also critical transfer.
timepoint
One of a network of nodes in a service, route, block, or time scheduling system that represents a key location along one or more routes at which fixed route vehicles are scheduled to arrive or depart at specified times.
A timepoint has no directional attribute assigned to it. Patterns of opposite direction as well as separate routes may cross the same timepoint. Timepoints, therefore, are used as tie points in the fleet-wide route network. Zero, one, or more stops can be located at or near a timepoint. A timepoint designated for a busy intersection may have a stop at or near each corner of the intersection.
Also called network point (used in UK).
See also node.
To Time
tower
Location of a radio transmission antenna.
Tracker Action Browser
Some of the user and system actions to be tracked can be defined in ancillary data. Comments can also be logged.
transfer
- When a passenger gets off one transit vehicle and onto another to continue a trip.
See also stay in your seat transfer.
- Slip of paper denoting proof of fare payment.
transfer point
Location along a route where transit lines meet so that passengers can get off and board a different vehicle on a different route.
These locations don't have to be timepoints, or the same point (different corners of an intersection).
Also called interchange (used in UK).
See also transit center.
transit center
Facility used for timed transfer of passengers between routes.
transit control center (TCC)
transportation center
See transit center.
travel
Time and distance an operator must travel to arrive at the start location of a route assignment.
travel time
Time needed for an operator to reach a street relief point, or the time required to reach the garage when an operator is relieved via street relief.
trip
- Travel from one pick-up to one drop-off for a single booking.
- Operation of a transit vehicle along one line in one direction from a start node to
an end node.
Also called journey (used in UK).
- Travel along (or scheduled travel along) a single pattern at a single time of day.
A block is comprised of successive trips. Throughout the day, different trips may traverse the same pattern multiple times.
Round trips return vehicles to the same node they left and are typically a pair of adjacent trips traveling in opposite directions. However, a vehicle using a pattern that follows a closed unidirectional path (for example, a freeway looper) may be a round trip that's an unpaired trip.
tripper
- Piece of work offered to operators on an irregular basis. Typically, these are
operator work assignments that aren't long enough to qualify as a run or a full
day's work.
Also called open (used in UK).
- Extra bus service built into transit schedules to accommodate students attending secondary schools (school trippers).
turnback
To place a scheduled, in-service vehicle out-of-service and having it skip ahead to resume service later in the route.
Turnback is usually performed in conjunction with a spacer vehicle to get a late vehicle back on time.
It's most commonly used on radial routes where the vehicle turns back from outbound to inbound. The vehicle may skip ahead to the nearest on-time location or start at the beginning of the next on-time trip. Sections of the route not covered by a spacer vehicle are counted as lost service. Waivers need to be created to cover skipped timepoints.
See also short turn.
turn list
List created in Trapeze4 applications that provides the exact street route a vehicle must travel to begin and complete a route.
If a transit agency is equipped with MDTs, turn lists may be sent to operators as directions lists for routes.
two-way text messaging
Ability to send text messages between dispatchers and operators.
This eliminates noisy radio chatter and frees radio lines for critical calls.
twsp
File extension used for Trapeze workspace files. For example, default.twsp.