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Model Systems Engineering Documents for Adaptive Signal Control
Technology Systems is intended to provide guidance for
professionals involved in developing systems engineering documents
covering the evaluation, selection and implementation of adaptive
signal control technology systems.
This sourcebook is organized into seven chapters. Chapter 1 reviews
the goals of this work, provides background on GHG emissions in
transportation, and lists the strategies reviewed. Chapter 2
summarizes key findings about the strategies and offers
recommendations to the FHWA about providing guidance to DOTs and
MPOs. The research methodology is presented in Chapter 3 and the
role of land use is presented in Chapter 4. Finally, Chapters 5, 6,
and 7 present reviews of transportation demand management
strategies, transportation system management strategies, and
vehicle improvement strategies, respectively.
This report provides a guide for achieving a basic service model
for traffic signal management and operations. The basic service
model is based on simply stated and defensible operational
objectives that consider the staffing level, expertise and
priorities of the responsible agency. The report includes a
Literature Review, which provides a review of the National Traffic
Signal Report Card and Self- Assessment, case studies based on
agency archetypes that provide an understanding of how agencies
deliver traffic signal management services based on their resources
and interviews with acknowledged leaders providing support for the
basic service concept. A discussion of signal timing versatility in
support of the role it plays in providing good basic service is
included in the Appendix.
In October 2008 The Federal Highway Administration contracted a
study team to conduct a two-part study to assess technology for the
measurement of travel times for trucks through the Otay Mesa
international border crossing into the US. The primary goal was to
evaluate the ability of one of two technologies to accurately
record travel times through the border zone. The specific
objectives of the project were to: (1) Assess the effectiveness of
a technology for automated capture of travel time for vehicles
crossing the border. (2) Gather historical travel time data over
the period of one year. The results of the work are summarized in
this Final Report.
This report provides the transportation community (including
highway engineers, planners, NEPA practitioners) with digestible,
transparent, regional information on projected climate change
effects that are most relevant to the U.S. highway system. This
information is designed to inform assessments of the risks and
vulnerabilities facing the current transportation system, and can
inform planning and project development activities.
The Safe, Accountable, Flexible, Efficient Transportation Equity
Act: A Legacy for Users (SAFETEA-LU), which was signed into law in
August 2005, contained several provisions focused on streamlining
the environmental review process. One of these provisions, Section
6002, allowed for State Department of Transportation (State DOT)
funding of staff, at both Federal and State resource agencies, who
are dedicated to working on State DOT projects on environmental
streamlining and related planning activities. This report assesses
trends in the use of these "funded positions" and provides
recommendations to State DOTs and resource agencies to support more
effective uses of funded positions. The report is based on a study
conducted by the Federal Highway Administration (FHWA) Office of
Project Development and Environmental Review with assistance from
the Volpe National Transportation Systems Center (Volpe Center).
The study consisted of two parts: (1) a literature review to assess
the state of the knowledge about State DOT-funded positions and
agreements, and (2) a series of interviews with participants in
funded positions programs, including program managers at State DOTs
and Federal and State resource agencies and individuals in those
positions.
This report's purpose is two-fold. First, it documents the elements
likely required to implement a carbon sequestration process
tailored to state Departments of Transportation (DOTs). Findings
are based on the challenges, key lessons, and preliminary results
from New Mexico DOT's initial five months of implementing the
Federal Highway Administration's (FHWA) Carbon Sequestration Pilot
Program (CSPP). Although communication of the progress and outcomes
should continue through the life-cycle of the pilot program, it is
expected that the body of knowledge formed from NMDOT's early
experience can help other state DOTs evaluate the viability of
carbon sequestration practices in lands they control. The CSPP is
also considered a demonstration project. As such, this report
offers preliminary recommendations and considerations that can
assist FHWA and other federal agencies in making well-informed
decisions related to carbon sequestration in highway ROW during
discussions surrounding the reauthorization of the nation's next
transportation bill. Since the NMDOT effort is ground-breaking
nationally, and perhaps globally, it is expected that NMDOT's
experience can provide insights useful in determining whether
efforts to accomplish a similar program at a broader scale are
practical.
For this exploratory study, focus groups were convened in Northern
Virginia and Philadelphia among the general public, business owners
and managers, and owners and managers of shipping and
transportation logistics firms. The purpose of these focus groups
was to obtain feedback on a specific congestion pricing scenario
and to better understand the public's concerns regarding congestion
pricing. A secondary purpose was to learn more about how to
communicate with the public on the topic of congestion pricing.
The objective of this review is to develop a marketing plan of the
most effective methods of promoting bicycle and pedestrian safety
to Hispanic audiences.
In March 2000, FHWA, AASHTO and the Transportation Research Board
(TRB) jointly sponsored an international scanning study to observe
right-of-way and utility coordination practices in four European
countries. The scanning study delegation identified practices used
in the selected countries that, if implemented in the U.S., will
help ensure timely procurement and clearance of highway
right-of-way and adjustment of utilities. Findings and observations
in this report are grouped into the following chapters (Appraisal
and Acquisition; Compensation and Relocation; Training; Utilities;
and Project Development) and includes primary findings the team
believes have the most significance and/or implementation value.
Other observations that may have potential implementation value in
the United States are also included.
In March 1998, the Federal Highway Administration (FHWA) Office of
Natural Environment, released the FHWA Traffic Noise Model (FHWA
TNM) Version 1.0, a state-of-the-art computer program for highway
traffic noise prediction and analysis. Since then, the FHWA, with
assistance from the Volpe Center Acoustics Facility (Volpe Center)
and Foliage Software Systems (FSS), have released updates of TNM
(Versions 1.0a, and 1.0b) in March 1999 and August 1999,
respectively. In support of the FHWA and the California Department
of Transportation, the Volpe Center and FSS released Version 1.1 in
September 2000. TNM 2.0 is the latest release of the TNM software.
Two companion reports were released with TNM Version 1.0, a
Technical Manual that describes the acoustics within TNM and a
User's Guide. In addition, prior to TNM release, a data report was
published that describes the vehicle noise-emissions data base
within TNM. This document is an addendum to the FHWA TNM Version
1.0 User's Guide. It details the enhancements in the program up to
and including Version 2.0.
This summary report describes the September 1998 technology
transfer scan tour to four European countries to learn how these
countries are addressing their own safety issues, even as they
comply with the increasing centralization of rules and regulations
enacted by the European Commission. The key areas examined were
human resources, vehicle safety systems, and regulations. The
report includes recommendations and implementation strategies.
The objectives of this document are to provide: (1) guidelines on
how to design a highway noise barrier that fits with its
surroundings and performs its intended acoustical and structural
functions at reasonable life-cycle cost; and (2) a state-of-the-art
reference of common concepts, designs, materials, and installation
techniques for the professional highway engineer, the noise barrier
designer, and the non-professional community participant.
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