03 Flashcards
involves the evaluation and selection of highway or
transit facilities to serve present and future land uses.
URBAN TRANSPORTATION PLANNING
projects that can be implemented
within a one- to three-year period
SHORT -TERM
- traffic signal timing to improve
flow - car and van pooling to reduce
congestion - park-and-ride fringe parking lots
to increase transit ridership - Other transit improvements
SHORT-TERM PROJECTS
long-range transportation needs of an
area and identifies the projects to be
constructed over a 20-year period.
LONG - TERM
- adding new highway elements
- additional bus lines or freeway
lanes - rapid transit systems and
extensions - access roads to airports or
shopping malls
LONG-TERM PROJECTS
Data-gathering activity in which urban travel characteristics are described for each
defined geographic unit or traffic zone within the study area
INVENTORY OF EXISTING TRAVEL AND FACILITIES
carried out to develop a program of highway and
transit projects that should be completed in the future
URBAN TRANSPORTATION STUDY
s a special area delineated by state and/or local
transportation officials for tabulating traffic-related data–especially journey-towork and place-of-work statistics.
TRAFFIC ANALYSIS ZONE (TAZ)
statement of goals,
objectives, and standards is prepared that identifies deficiencies in the existing system,
desired improvements, and what is to be achieved by the transportation
improvements.
ESTABLISHMENT OF GOALS AND OBJECTIVES
The alternatives to be analyzed will be identified
* Analyze the travel effects of different land-use plans and to consider various
lifestyle scenarios.
* The options available
* to the urban transportation planner include various technologies, network
configurations, vehicles, operating policies, and organizational
arrangements.
GENERATION OF ALTERNATIVES
- To determine the project cost, and
- To estimate the amount of traffic expected in the future.
The estimation of facility cost is relatively straightforward, whereas the estimation
of future traffic flows is a complex undertaking requiring the use of mathematical
models and computers.
ESTIMATION OF PROJECT COST AND TRAVEL DEMAND
to identify feasible alternatives in terms of
cost and traffic capacity, to estimate the effects of each alternative in terms of the
objectives expressed, and to assist in identifying those alternatives that will serve the
traveling public and be acceptable to the community
EVALUATION OF ALTERNATIVES
Among the groups that could be affected are the:
TRAVELING PUBLIC (USER)
HIGHWAY OR TRANSIT AGENCIES (OPERATOR)
NON-TRAVELING PUBLIC (COMMUNITY)
e based on a process that will ultimately involve elected
officials and the public. Quite often, funds to build an urban transportation project
(such as a subway system) may involve a public referendum
CHOICE OF PROJECT
Go from one place to another, typically over a distance of some length
TRAVEL
willingness and ability to purchase a commodity or service.
DEMAND
– the process of making predictions based on past and present data and
most commonly by analysis of trends.
FORECASTING
Travel from one address (origin) to another (destination) in any mode of
transportation
TRIP
An origin or destination with a dwell time greater than 30 minutes. Labeled
as Home, Work, or Other
ANCHOR
An origin or destination with a dwell time less than 30 minutes. This
does not count stops for changing mode or unplanned delay. These stops are
planned, but short. For example, to do a quick errand or pick up passengers.
INTERVENING STOPS
Travel between anchors. It is possible to have the same location for both
anchors. Home and Work always terminate a tour. If the anchor is of type Other and
the dwell time is greater than 30 minutes, then that also terminates a tour.
TOUR
– Based on the start and end anchor. For example, Home to Work (H-W), or
Home to Other (H-O).
TOUR TYPE
- The defining mode for the tour based on which mode was used for the
longest distance.
TOUR MODE
aims at explaining where the trips come from
and where they go, and what modes and which routes are used. It provides a zone
wise analysis of the trips followed by distribution of the trips, split the trips mode wise
based on the choice of the travelers and finally assigns the trips to the network.
TRAVEL DEMAND MODELING
