Commercial Operations

After several projects concerning traffic information services the Bavarian Board of Building
has initiated the founding of a Traffic Information Agency, whose tasks are to improve the
already existing services, now publicly operated and to base them on a common technical
platform. The operation of this agency called “Verkehr in Bayern” (ViB) has been tendered
for a run-time of 10 years from the start in January 2006. The services of the VIB will consist
of free basic services, services for the public authorities and payable value-added services.
Quality assurance of raw data, generated information and the final services is a basic task for
the public side to perform within the PPP-framework.

Peter Pollesch

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

The Proof of Concept (POC) for the testing of vehicle-to- infrastructure and vehicle-to-vehicle
communications for a variety of vehicle safety applications and applications that support private
commercial interests is located in Oakland County Michigan. The Road Commission for Oakland
County (RCOC) was chosen to work on the POC because of our high level of expertise in this
field. RCOC’s responsibility was to install the Road-Side-Equipment (RSE) and the backhaul
equipment for this historic project. This paper describes the different Vehicle Infrastructure
Integration (VII) field applications RCOC has implemented from the very first Ali-Scout (a
beacon based route guidance system) to the POC and the lessons learned.

Road Commission for Oakland County

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

Initial estimates to provide the infrastructure to support Vehicle Infrastructure Integration (VII)
range between three and five billion dollars (US). As discussions continue on the cost and
methods to deploy VII infrastructure, the construction of freeway management systems and
signal systems also continues throughout the United States. These systems utilize
communication networks and infrastructure such as electrical power and camera poles that can
be leveraged to reduce the time and cost to deploy the infrastructure to support VII.

Florida Department of Transportation

HNTB Corporation

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

In order to achieve more reliable evaluation results in the assessment of various traffic operations and management strategies, the microscopic traffic simulation model used in the analysis should be well calibrated and validated. As a previously proposed procedure often produced deficiencies under  multiple  performance  measures,  this  paper  presents  an  enhanced  procedure  that  can accommodate multiple performance measures in the calibration and validation procedure, and the case  study  results  of  the  proposed  enhanced  procedure  on  the  four  signalized  intersections  in Charlottesville, Virginia.  The results showed that the proposed multiple performance measures-based  procedure  significantly  improved  the  reliability  of  the  calibration  over  the  previous procedure.

University of Virginia

PTV America, Inc.

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

The original Marey graph, published in 1885, has become a frequent example of innovative

design in data visualization. It plots a French train timetable on a time-space diagram, intuitively

depicting the paths of trains throughout the day. These graphs continue to be used in transitrelated

applications such as the Google Transit Feed Specification (GTFS) Schedule Viewer. This

paper repurposes the original Marey graph for use in transit performance measurement by adding

schedule adherence and passenger load information. APC data preprocessing steps are described

and technological issues related to the development of the visualization are discussed. Finally,

this paper demonstrates how the Marey graph enables quick visual identification of vehicle

performance trends across space and time.

Berkeley Transportation Systems

Presented at the 18th World Congress on ITS, October 2011, Orlando, Florida