Task Order 5601
Transportation Safety Research
Intersection Decision Support
(Conduct Supporting Research)
Jim Misener
California PATH
University of California, Berkeley
Summary
TO 5601 supports TO 5600, with the objectives
of TO 5600 subsuming TO 5601. Work within TO 5601 covers two
supporting subtasks and is generically referred to as "Task S", "S"
denoting "support": Subtask S1 is Develop Intersection Simulation
Tool, and Subtask S2 is Evaluation of Commercial Off-the-Shelf
(COTS) and Emerging Technologies Components. Both are summarized
below:
S 1 Develop Intersection Simulation Tool
We recognize the importance of "testing in the computer",
particularly when we are developing notional systems and assessing
their effectiveness under a variety of potentially dangerous
scenarios. Hence, we will develop a software tool suite, to include
visualization, used to design, simulate, analyze, and visualize
intersections. The software development will incorporate realistic
models from outside sources as well as those developed within the IDS
program. This tool suite will be provided to IDS program (as well as
US DOT and US DOT-designated) users as an invaluable part of
intersection system development and assessment. As an important
additional objective, it is our intent that this tool be designed
with the growth potential to be amenable to future enhancements that
will make it user-friendly, visually realistic, and useful to
practitioners. In short, our tool will have two uses: first, as a
support tool for the explicit research objectives and virtual testing
of the IDS program, and, later, as the foundation for a future tool
that will enable practitioners to design IDS systems for their
particular applications and make visual presentations of proposed
designs.
The primary uses of this tool suite will be:
- Support for research and engineering efforts
- Cost/benefit analysis
- Visualization of IDS concepts
- Design of IDS-equipped intersections by practitioners
This would be a post-IDS program legacy, one to which we will pay
particular attention, recognizing that the development of the final
user-friendly tool for use by practitioners will need to be addressed
in the subsequent IDS FOT program.
Task S 2 Evaluation of Commercial Off-the-Shelf (COTS) and
Emerging Technologies Components
We will survey Commercial off-the-shelf (COTS) and emerging
technologies for eventual deployment at intersections and analyze
their performance specifications with respect to our design
requirements and then compare and evaluate different alternatives.
The IDS team will contact the chosen vendors and encourage them to
loan their samples to our research team. We will also try to get
vendors to set up demonstrations for our observation and evaluation.
Our efforts will be concentrated on finding the most suitable
products to be deployed at intersections based on the findings of our
research project. These products would include discrete and
continuous sensors, software interfaces for signal controllers,
advanced signage technologies, communication devices, and portable
computers. The IDS team will also attempt to find emerging
technologies that are not COTS yet but hold promise for the future
IDS use. We will contact the inventors of these products and try to
obtain samples of their products. This effort might result in
unearthing some technological gems for our research. It should be
emphasized that due to new products entering the market as well as
new innovations taking place, we will be continuously looking for new
COTS or emerging technologies throughout the period of performance
for this task.
Our scope of work for this task will be divided into four categories:
Surveying, Testing, Modifying, and Acceptance Testing. The IDS
research team will conduct a survey of product candidates using our
own knowledge, as well as through Internet and literature search of
primary trade journals. We will also attend trade shows such as ITE
and ITSA to learn more about the latest available COTS products and
to establish contacts with vendors. This survey is expected to yield
a list of the most promising product candidates. We will contact the
chosen vendors and will try to obtain the products on a loan basis or
if deemed necessary, we will purchase the products. Then, the
products will be tested to determine if they meet the specifications
proclaimed by the vendors as well as the IDS functional and design
requirements. If possible, we will invite the chosen vendors' local
representative to set up demonstrations for us. After a product or
device passes our testing requirements, if some modifications are
still needed, the IDS research team will work with the vendor to have
these modifications done. It is assumed that the IDS research team
members would do most of modifications for our own experimentations.
Finally, acceptance tests will be done to make sure the device or
systems are working as desired. We will complete the first iteration
of our work plan and will provide an interim report by the end of
February 2004, and will do subsequent iterations with additional
products throughout the remainder of the project.
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