Commercial Operations

This paper addresses in general the FTA’s current emphasis on transit circulators, and in that light the need for an analysis methodology and modeling tools that address technology focused transit circulator studies. As a focused topic, the paper approaches the alternatives analysis  requirements in terms of the functional ITS elements used by transit circulator technologies. The paper also includes a discussion of the nature of transport systems suitable for circulation system applications in urban centers and the diverse technology options that are available for transit circulator applications, including at-grade and aerial transit system alignments/technologies. To analyze the different ways in which these alternative technologies interact with other systems within the built environment – in particular the emulation of the traffic signal system and the associated operations of the traffic and pedestrian systems – special modeling tools are described that accomplish a true “apples-toapples” comparison between alternatives.

Kimley-Horn and Associates, Inc.

Presented at the ITS America Annual Conference and Exposition, May 3-5, 2010, Houston, Texas

This paper reviews the process followed in applying the systems engineering process to the San Mateo County Smart Corridors Program. This Program was undertaken in response to a major incident on Highway 101 which resulted in the closure of that freeway for over 24 hours. As a result, traffic diverted to the local roadways which were not able to handle the increased demand. The Smart Corridor Program is intended to address this situation when it occurs again (which is estimated to be approximately 2 to 3% of the time). Trailblazers, coordinated signals, arterial message signs and cameras will be used.

URS Corporation

Presented at the ITS America Annual Conference and Exposition, May 3-5, 2010, Houston, Texas

ITS Projects include the application of data processing and communications to surface transportation.  ITS Project Risk is a failure to satisfy the needs of project stakeholders (users, operators and maintainers), or an unexpected delay and/or cost to complete the project. A Consensus based ITS Architecture is one that all stakeholders agree will meet their ITS needs. This paper explains how a policy of developing, maintaining, and using a regional ITS architecture to plan ITS projects, and a systems engineering process to design, build, and test an ITS project accelerates deployment, while reducing the risk of ITS project failure.

Consensus Systems Technologies (ConSysTec) Corp

Presented at the ITS America Annual Conference and Exposition, May 3-5, 2010, Houston, Texas

FLOW (Fast Lane On Warning) algorithms  manage traffic and reduce fuel consumption rates.
The applications presented here will cover two out of the four types of FLOW  management:
open first-encountered approaches, and inter-signal networks where traffic signals are far apart
elative to speed.. The discussion here will include algorithms for safety, emplaced readouts,
mobile readouts, adaptive robotic real time changing capabilities.  
Motorists will be able to proceed with their own individual speed assignments ranging from the
afe speed limit to a bit below half that speed depending on how long their particular open right
of way (green segment) is as well as when they arrive at the beginning of a FLOW trap.
These algorithms and associated hardware will significantly decrease fuel expenditures on an
ntersection by intersection basis, and significantly reduce pollution (NOx, particulates, O3, COx
nd so on) on an intersection by intersection basis. The algorithms presented here allow for
vehicles to remain in the high energy state. Comparisons between this high energy state vs.
raffic systems without (where most have to reaccelerate back up to the high energy state) are presented in terms of lesser fuel consumption rates and pollution reduction approximations:  
1. For an individual intersection, 2. For the LA area as an example, 3. For the Continental US.

Free Enterprises

Paper submitted for publication and presentation at the ITS America’s 2009 Annual Meeting and Exposition

Florida Department of Transportation (FDOT) is implementing the first Ramp
Signaling (RS) system along the I-95 corridor within Southeast Florida as part of an overall long-term strategy of integrated initiatives to improve the safety, throughput and reliability of mobility within this region. As a relatively low-cost traffic management technique, Ramp signals have been used to alleviate congestion due to bottlenecks and mainline traffic flow being disrupted by entering platoons in the past decades. This paper documents the deployment of the first RM system in South Florida. In this paper, the project is first overviewed, followed by the description of the RS system (devices, software and hardware) and the system operation, then various implement challenges and the solutions to address these challenges are presented. The practical experience embodied by this project will benefit the new deployment of RS system in the future.

Florida Department of Transportation

AECOM USA, Inc.

Paper submitted for publication and presentation at the ITS America’s 2009 Annual Meeting and Exposition