As demonstrated in previous chapters, mitigation of greenhouse gases (GHGs) emitted and conservation of energy used in transportation will most likely have to involve more than vehicles and fuels if society commits to 60 to 80 percent reductions in transportation GHG emissions by 2050. Legislation introduced in both the House and the Senate in 2009 implies substantial reductions in transportation GHG emissions. House Energy and Commerce Committee Chairman Waxman’s and Congressman Markey’s proposed bill (H.R. 2454) passed the House of Representatives in June 2009. It would establish a carbon cap-and-trade program, encourage introduction of electric vehicles, require Environmental Protection Agency (EPA) regulation of GHG emissions from heavy-duty transportation vehicles, and require states and metropolitan planning organizations (MPOs) to follow EPA’s guidance in setting targets and planning for reductions in transportation GHG emissions. The bill establishes a goal of reducing GHG emissions by 83 percent from overall 2005 levels by 2050. The legislation does not set transportation-specific requirements, but it requires EPA to set transportation GHG emission reduction targets that states and MPOs should meet. In addition, it outlines a variety of transportation mitigation efforts that states and MPOs could analyze and that regions could implement in pursuing their own GHG emission reduction goals. Senate Environment and Public Works Chairman Boxer and Senator Kerry unveiled a bill in October 2009 that has similar provisions.
The surface transportation reauthorization bill introduced in the House of Representatives by Chairman Oberstar of the Transportation and Infrastructure Committee has planning and target-setting goals that mirror those of Waxman–Markey. The surface transportation reauthorization
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5
Estimated Research Program Cost
and Criteria for Effective Management
As demonstrated in previous chapters, mitigation of greenhouse gases
(GHGs) emitted and conservation of energy used in transportation will
most likely have to involve more than vehicles and fuels if society com-
mits to 60 to 80 percent reductions in transportation GHG emissions by
2050. Legislation introduced in both the House and the Senate in 2009
implies substantial reductions in transportation GHG emissions. House
Energy and Commerce Committee Chairman Waxman’s and Congress-
man Markey’s proposed bill (H.R. 2454) passed the House of Represen-
tatives in June 2009. It would establish a carbon cap-and-trade program,
encourage introduction of electric vehicles, require Environmental
Protection Agency (EPA) regulation of GHG emissions from heavy-
duty transportation vehicles, and require states and metropolitan plan-
ning organizations (MPOs) to follow EPA’s guidance in setting targets
and planning for reductions in transportation GHG emissions. The bill
establishes a goal of reducing GHG emissions by 83 percent from overall
2005 levels by 2050. The legislation does not set transportation-specific
requirements, but it requires EPA to set transportation GHG emission
reduction targets that states and MPOs should meet. In addition, it out-
lines a variety of transportation mitigation efforts that states and MPOs
could analyze and that regions could implement in pursuing their own
GHG emission reduction goals. Senate Environment and Public Works
Chairman Boxer and Senator Kerry unveiled a bill in October 2009 that
has similar provisions.
The surface transportation reauthorization bill introduced in the House
of Representatives by Chairman Oberstar of the Transportation and Infra-
structure Committee has planning and target-setting goals that mirror
those of Waxman–Markey. The surface transportation reauthorization
79
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80 A Research Program for Mitigating and Adapting to Climate Change and Conserving Energy
bill introduced by Chairman Rockefeller of the Senate Commerce, Trans-
portation, and Science Committee and Senator Lautenberg (S. 1036) calls
for annual reductions in per capita vehicle miles of travel, a 40 percent
reduction in transportation GHG emissions by 2030, increased use of
public transportation, and an increase of 10 percent in the proportion of
freight moved on nonhighway modes. In addition, various states have
adopted plans to reduce future vehicle miles of travel.
As described in Chapter 3, the effectiveness, costs, feasibility, and
acceptability of most strategies to mitigate transportation GHG emis-
sions have not been established. Because travel and economic growth are
tightly linked, implementing the most cost-effective mitigation policies
would help minimize reductions in future prosperity. The federal gov-
ernment, states, MPOs, cities, and counties will all set transportation
policies. Thus, the audience for transportation policy guidance is large
and diffuse. The research areas identified in Chapter 3 would provide
guidance for policy decisions at all levels of government.
The climate will continue to change for decades because of GHGs
already in the atmosphere. Therefore, well-designed adaptation to climate
change needs to begin. The infrastructure capital costs of raising or replac-
ing bridges, roads, and guideways vulnerable to flooding, for example, are
high, and climate impacts at the spatial and temporal scales that trans-
portation officials require cannot be predicted. The recommendations in
Chapter 4 provide a framework for conducting research that can guide
decisions about effective transportation adaptation strategies.
RESEARCH PROGRAM COST
The committee believes that the urgency of responding to energy and cli-
mate change goals requires initiation of the research identified in previ-
ous chapters in short order. The technical information to inform policy
decisions and practice could be significantly enhanced over the course of
the next surface transportation authorization cycle, although at least two
such cycles would likely be required to complete the envisioned funda-
mental and applied research. Some of the recommended research will
probably need to continue on a regular basis, much as safety, operations,
and other subjects are ongoing topics of research.
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Estimated Research Program Cost and Criteria for Effective Management 81
The committee was charged with developing approximate costs of the
research programs it recommends. As a first step in developing these esti-
mates, the committee asked each of the commissioned paper authors to
develop a “bottoms up” estimate derived from the research topics the
authors’ recommended and their judgment as experienced researchers
and research managers.1 The committee relied on these estimates, in
part, and applied its judgment, as explained below.
As indicated in Chapters 3 and 4, the topics suggested for research are
examples of areas where facts are unknown or in dispute or the commit-
tee judges that genuine progress in understanding can be made. A rigor-
ous cost estimate would have required more detailed research road maps
than the committee had the time or resources to develop. There is a com-
pelling need to initiate research and analysis to provide the best possible
guidance for policy makers based on existing literature, available data,
and professional judgment. The committee believes that this cost can be
reasonably approximated on the basis of previous experience.
Estimates of the cost of the fundamental mitigation research and the
applied adaptation research are necessarily more speculative. The com-
mittee believes that scholars and experts will need to be convened to pro-
vide guidance on the most promising areas. Nevertheless, transportation
research programs are typically authorized for periods of 5 or 6 years,
and progress in addressing climate change and energy conservation needs
to commence as soon as possible. Therefore, the committee has expressed
its judgment with regard to the appropriate scale at which to start these
activities in the upcoming authorization. The experience that will be
gained will help inform subsequent authorizations.
Mitigation
In the mitigation area, a program with two main components is sug-
gested. The first, policy guidance and outreach, would initially provide
policy makers with technical guidance for implementing mitigation poli-
cies based on available research. It would also provide practitioners with
guidance for analyzing and implementing mitigation strategies and
1 See the detailed estimates prepared by Burbank (2009), pp. 16–32 and Table 2; estimates prepared
by McNeil (2009), Table 7; and those prepared by Whitty and Svadlenak (2009), pp. 117–119.
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82 A Research Program for Mitigating and Adapting to Climate Change and Conserving Energy
improving technical tools. These tools would initially be based on the
best available information and would be improved as new information
emerges from the fundamental research program described below.
The committee has drawn on Burbank’s (2009) discussion of needed
areas of research and her estimates of program costs, but it suggests a
considerably scaled-back approach at the outset. She identifies a large-scale
program of activity and technical assistance that would exceed $50 million
per year. The committee suggests starting with a smaller set of the most
critical policy research activities described in Chapter 3 in the section on
policy guidance and outreach. The committee estimates that the five
applied policy research topics in that section could all be completed within
a total cost of $5 million. Outreach to policy makers at the state, regional,
and local levels could be conducted for $1 million annually once new
guidance had been developed; hence it would not gear up until the third
year or so. Updating technical tools for practitioners would require at
least $9 million annually, for a total of $53 million over 6 years.2 Thus, as
a starting point, these activities are judged to cost about $60 million, for an
average cost of about $10 million during the upcoming authorization
cycle. Should this area be funded, a more refined estimate based on expe-
rience and need should be developed before subsequent authorizations.
A fundamental research program is recommended that would be
modeled on the way basic research is organized and conducted by the
National Science Foundation (NSF). Burbank recommends a program
of $50 million annually, but the committee believes that the existing
research institutions would not be able to absorb this much funding pro-
ductively at the outset. Instead, the committee recommends that fund-
ing begin at $10 million in the first year, grow by $5 million annually for
the second through the fourth years, and then level off at $30 million
annually in subsequent years. The committee suggests that the first cou-
ple of years of this research area be devoted to commissioning critical
2 The committee recognizes that this is a conservative estimate for the cost of improving techni-
cal tools relied on by practitioners. For example, the committee that prepared Special Report 288:
Metropolitan Travel Forecasting: Current Practice and Future Direction (TRB 2007) estimated that
the federal share of investment needed to improve travel forecasting models and get them into
practice would be on the order of $20 million annually, and this is only one of the tools where
improvements would be needed by practitioners.
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Estimated Research Program Cost and Criteria for Effective Management 83
surveys of the literature and convening panels of scholars and experts.
The most promising areas based on priority topics would be identified,
drawing on those identified in Chapter 3 that are most amenable to
advancing through expanded investment. The committee believes that
$30 million per year is an appropriate scale of investment for fundamen-
tal mitigation research at the outset, but it recognizes that this level of
investment needs to be reevaluated toward the end of the first authoriza-
tion to determine the appropriate level in subsequent years.
Adaptation
An adaptation research program is needed that would (a) summarize and
build on existing knowledge to guide decision making, particularly in the
area of developing decision tools for policy makers that incorporate prob-
abilistic approaches to risk management, and (b) conduct applied research
in the traditional areas of transportation programs (construction, opera-
tions, maintenance) and for the revision of standards. The first priority for
this research should be to develop guides to decision making based on
existing research. Decisions about how to protect, move, or extend the life
of existing infrastructure at risk from climate change–related damage
could be both expensive and controversial. The risks involve uncertainties
beyond those normally encountered in transportation infrastructure deci-
sions. Tools to guide decision making that incorporate these risks and
uncertainties are needed. In parallel, more fundamental research should
be undertaken to improve these tools. Technical guidance at the opera-
tional level is also needed. Stakeholders involved in building, operating,
and maintaining transportation infrastructure need to be involved in the
development of a detailed applied research agenda, which would occur
during the upcoming authorization cycle. The identified research would
be conducted during the following cycle.
The foundational research, as rearranged in accordance with the sug-
gestions of Chapter 4, would cost roughly $31 million over the first 6 years,
according to McNeil’s (2009) estimates of the cost of each research topic
(see Table 7 of her paper). During the initial 6-year period, expert and
practitioner stakeholders could also flesh out the recommended applied
research topics and develop a research road map with detailed cost esti-
mates and schedules and a request that the program be funded in a second
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84 A Research Program for Mitigating and Adapting to Climate Change and Conserving Energy
authorization. Development of detailed applied adaptation research
plans and individual project scopes would cost roughly $3 million.
The applied research program could also begin work on revision of
design standards and identification of best practices, with a combined
cost of about $13 million. Over the first 6 years, these activities, along
with supporting research activities 3 and administration, would total
roughly $60 million, or about $10 million per year. In the second 6-year
period, emphasis would be placed on the applied research topics based
on a detailed program plan developed in the interim by experts and
stakeholders and completion of the foundational research. The actual
cost of these activities will depend on the development of the research
program plan.
Summary
The committee believes that an investment of $40 million to $45 million
annually over an initial 6-year period is appropriate in starting a research
program of this nature (Table 5-1). During this authorization period the
program will be able to provide initial guidance to policy makers and
begin conducting applied and fundamental research. The guidance will
be updated as research projects are completed, but such research will
need to continue beyond the first authorization period. The cost of the
program for a subsequent authorization will depend on the experience
gained in the first round and the detailed research program plans to be
developed.
The committee believes that the research should be organized as a
single program and given high priority. Because of the importance and
nature of the research, University Transportation Centers should also be
encouraged to fund transportation energy conservation and climate
change–related research. The recommended program may appear sub-
stantial but would represent only about 9 percent of all the surface trans-
portation research programs of the U.S. Department of Transportation
(USDOT). The decisions to be made with the information developed will
3 Supporting research activities are defined to include the information clearinghouse and dissemina-
tion activities recommended by McNeil (2009) as well as the cost of travel for stakeholder involve-
ment in development and review of requests for proposals and meetings to evaluate final reports.
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Estimated Research Program Cost and Criteria for Effective Management 85
TABLE 5-1 Estimated Cost of Research Programs ($ millions)
Program 6-Year Total Annual Average
Mitigationa
Guidance and outreach 60.0 10
Fundamental research 130.0 21.7
Subtotal 190.0 31.7
Adaptation
Research 60.0 10
Total 250.0 41.7
aThe mitigation research cost estimate does not include the cost of collecting
travel data for research and improved modeling practice purposes. The cost of
such data collection could be $300 million annually (see Appendix B). The
estimates also do not include the cost of a mileage charging demonstration
program (see Appendix A).
involve costs and benefits of much greater magnitude than the cost of the
research.
CRITERIA FOR RESEARCH PROGRAM MANAGEMENT
Three main interrelated themes about research organization emerged
from the papers commissioned for this study and the committee’s
deliberations:
1. Broad and diverse audience: Transportation system governance is
decentralized, and it plays an indispensable role in the daily lives of all
Americans. In addition, transportation has a significant impact on
national petroleum imports and energy consumption. For these rea-
sons, the audience for the necessary policy and implementation guid-
ance spans all levels of government, private industry, and the public.
2. Need for stakeholder involvement: Stakeholder perspectives and inter-
ests are diverse. Individuals at different levels of government, in indus-
try, and in nongovernmental organizations have different kinds of
responsibilities, and some of the measures to be studied are potentially
controversial. Stakeholder involvement in the research programs needs
to be broad and deep to ensure relevance to this diversity of interests.
Relevance can be encouraged through stakeholder involvement in
a research program and virtually guaranteed through stakeholder
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86 A Research Program for Mitigating and Adapting to Climate Change and Conserving Energy
governance of a program. (Involvement implies an advisory role,
whereas governance implies a decision-making role.)
3. Need for credible, objective research: Because of the controversial nature
of some of the topics and the differences in perspective of some of the
stakeholders, the research program needs to be as credible and objec-
tive as possible. Objectivity can be achieved by following the highest
standards of scientific quality control: scoping of requests for propos-
als by qualified research managers, open solicitation and competition
for funding, merit review of proposals by peers, and peer review of
completed research.
The above themes can be reduced to two essential criteria for organiz-
ing and managing the research: extensive stakeholder involvement and
processes to ensure scientific rigor. To these criteria could be added an
important aspect of research management: an ability to shift direction,
reorder priorities, and reprogram funds as new information is gained.
Finally, the programs must be accountable to the elected officials who
provide the funds and the stakeholders who need the insights from
research to make decisions.
Stakeholder Involvement
Stakeholder involvement may vary across the different program areas,
as described below, but in each case it needs to be extensive. Expert and
practitioner stakeholders should participate in prioritizing and selecting
areas of emphasis, in merit review of proposals, and in evaluating projects
as they near completion.
Mitigation Policy Guidance and Outreach
Critical in this area is the recognition that transportation decisions are
made by policy makers at all levels of government—national, state,
regional, and local—as well as in the private sector, and their views about
priorities should be reflected in the research undertaken.
Fundamental Mitigation Research
Research to advance knowledge in mitigation would be best organized
on the NSF model, in which requests for proposals are shaped by subject
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Estimated Research Program Cost and Criteria for Effective Management 87
matter experts, panels of experts serve as merit reviewers, proposals are
openly solicited, and only the most qualified proposals receive funding.
The panels would be mostly composed of scholars, but inclusion of some
practitioners would be vital in ensuring that the research is relevant to
people who must implement transportation programs.
Adaptation
In the foundational research category, a small number of research projects
would develop methodologies that would be helpful in providing policy
makers and practitioners with advice on how to inventory vulnerable
assets and in making informed decisions about adapting infrastructure.
Stakeholders should be engaged in selecting areas of emphasis, and they
should participate in merit review panels along with subject matter experts
and in peer review. Included in this area are fundamental research projects
on adaptation that could be organized along the lines of the fundamental
mitigation research described above.
The planning for the applied adaptation research program should be
based on extensive interaction with practitioners and experts in the rel-
evant fields, who would help develop a detailed research plan, participate
in merit review, oversee research projects as they are conducted, and help
evaluate the research as it nears completion.
Scientific Rigor
The best practice in research management is to have open solicitations
for the conduct of research, to rely on merit review by peers for the selec-
tion of the best proposals, and to involve experts—and, in the applied
areas, practitioners—in the evaluation of the research.
Management Capability, Flexibility, and Focus
By its nature, research, whether fundamental or applied, is a process of dis-
covery. Often the most carefully developed plans will have to be adjusted
as knowledge is obtained. Thus, research managers need the capability and
flexibility to shift direction. Such decisions should not be undertaken
lightly and should be predicated on extensive dialogue with expert and
practitioner stakeholders, but the capability is essential. Highly detailed
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88 A Research Program for Mitigating and Adapting to Climate Change and Conserving Energy
legislative designations in the authorization of the programs could limit
this flexibility.
The committee also considered whether the various research pro-
grams could be folded into the ongoing activities of the USDOT modal
administrations. It concluded that such a decision risks fragmentation
and loss of focus of the activity.
Accountability
If the programs are funded, they should be designed to be accountable
to Congress and to stakeholders. The engagement of stakeholders in
decisions to be made about priorities and in evaluation of completed
projects will satisfy their accountability needs. To ensure accountabil-
ity to Congress, evaluations at the program level should be conducted
by independent third parties capable of analyzing research activities
of this nature. The peer review should be conducted at least every
other year, and reports should be provided by the evaluators directly
to Congress.
RELATED ISSUES
Mileage Charging
Interest in mileage charging as an option to replace or supplement the
gas tax in funding surface transportation infrastructure and opera-
tions is growing. Implementation of a mileage charging system would
provide a pricing mechanism for road use on the entire network; this
system could become an element of a mitigation strategy, whereby vehi-
cles with low or poor fuel economy could be charged a premium over
a base charge for road use. As described in Appendix A, several recent
reports by congressional commissions and others have recommended
a broad research and demonstration program to test the feasibility of
this concept.
An R&D program is needed that would inform the design and opera-
tion of a series of mileage charging demonstration programs. The research
would give policy makers information about how issues such as privacy,
efficiency, public acceptance, and equity affect the design and implemen-
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Estimated Research Program Cost and Criteria for Effective Management 89
tation of a mileage charging program. It would also recommend strate-
gies for addressing public concerns. Extensive demonstrations would be
required to test alternative concepts and engage key stakeholders and
the public in determining the acceptability of such an approach.
Data
The transportation field suffers from inadequate data with regard to sys-
tem performance and travel behavior. Rough indicators are available,
particularly at the national level, but they are less reliable at the state and
local levels at the detail required for good decisions. If legislation that
requires reductions in per capita travel at the national, state, and regional
levels is enacted, better baseline measures of passenger and freight travel
will become necessary. Most data systems designed to provide national
statistics are only representative at the national level and sometimes at
the state level. For regions to monitor passenger and freight travel reli-
ably, larger and more frequent samples would be necessary. Further-
more, if regions are to use transportation and land use strategies to
reduce GHG emissions and energy consumption, the modeling needed
to develop reasonable forecasts of travel and land use patterns and how
they might change under various policy regimes will require much more
extensive data than are currently collected. Because the United States is
a large and diverse nation with more than 300 million residents, 250 mil-
lion vehicles, and thousands of jurisdictions, data collection will entail
considerable costs (see Appendix B). Such data serve many transporta-
tion purposes; the need to address climate change and energy conserva-
tion may serve as the impetus to make the appropriate level of investment
in data collection.
SUMMARY
Transportation mitigation and adaptation research programs would
cost $40 million to $45 million annually for the upcoming authorization.
The investment would be worthwhile given the risks posed by climate
change and energy dependence and the link between transportation,
the economy, and the lifestyles of hundreds of millions of people. Many
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90 A Research Program for Mitigating and Adapting to Climate Change and Conserving Energy
mitigation strategies are possible, but not all are necessarily politically
acceptable, likely to be effective, or good public policy. Because of the
dearth of data and research in this area, policy makers do not have good
information about which policies would be most cost-effective, feasible,
and acceptable. The recommended research programs would begin to
fill this gap but would not be completed within a single authorization
period. The committee recommends that this research be given high
priority and hopes that new funds can be found to fund this research as a
single, unified program. It believes that University Transportation Centers
should also be funding transportation energy and climate change–related
research. The required investment for subsequent authorizations will
depend on the experience gained and on development of more detailed
research plans for a second authorization period.
The organization of the research is as important as the topics and the
funding level. The audience for the research is broad and diverse, as are
the entities that would have to implement the results. Thus, extensive
stakeholder involvement in the research program is critical to its success.
Furthermore, because the topics are important and even controversial,
the research should be conducted at the highest standards of scientific
inquiry. The management of the research program should be capable of
shifting direction as knowledge is obtained and should have the flexibil-
ity to do so. It should be accountable to Congress and stakeholders.
Mileage charging has emerged as a possible supplement to or replace-
ment for the fuel taxes that are the principal sources of revenue for high-
way and transit programs. Such a program could become a key element
of a mitigation strategy by allowing for additional fees on fuel-inefficient
vehicles. Prominent groups, including two commissions chartered by
Congress, have recently recommended an accelerated demonstration
program to test various technologies and engage policy makers and the
public in determining whether such a system would be technically fea-
sible and acceptable. (See Appendix A.)
Collection of the data necessary to carry out the kinds of initiatives
envisioned in proposed legislation would cost considerably more than the
mitigation and adaptation research identified above (see Appendix B).
Data collection would help governments in carrying out the planning
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Estimated Research Program Cost and Criteria for Effective Management 91
and analysis requirements in draft legislation and would make mitigation
research much more successful. The committee recommends that Con-
gress authorize funding for the collection of data adequate to meet the
needs of federal, state, and local governments as they analyze options and
plan mitigation strategies.
The nation faces a challenge as important and complex as any national
priority in achieving transportation GHG emission reduction and energy
consumption goals through significant changes in travel demand. Trans-
portation is deeply woven into the fabric of the economy and the daily
lifestyles of Americans. Whole metropolitan areas, residential neighbor-
hoods housing more than 100 million people, and mobility preferences
have been shaped by decades of history and transportation, energy, and
housing policies. The Interstates and other intercity highways have
allowed industrial and commercial development to occur in areas with-
out the advantages of a natural harbor or proximity to a rail hub.
Because transportation is such a large contributor to GHG emissions
and energy dependence, significant changes in federal, state, and regional
transportation policy may well become necessary. Such changes will surely
require difficult choices among values and desired outcomes. Adapting
the transportation system to climate change will be necessary, and the high
costs and levels of uncertainty imply difficult choices for policy makers.
Furthermore, mitigating transportation’s impacts and adapting to a
changing climate will be ongoing challenges for decades to come. The sys-
tem built over the past century is too large, its effects too pervasive, and
its economic significance too high for it to change quickly or easily.
Investment in the research and data collection recommended in this
report will inform the federal, state, and regional policy makers of today
and tomorrow who will be confronted with making such decisions—
decisions that will affect not only the feasibility and cost of achieving cli-
mate and energy goals but also the future prosperity of the nation and
the quality of life of every citizen. These decisions will have a better chance
of leading to desired outcomes if they are based on the best knowledge
science can provide. The cost of the recommended research investment
pales in comparison with the importance of informing the best possible
choices for the future.
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REFERENCES
Abbreviation
TRB Transportation Research Board
Burbank, C. J. 2009. Greenhouse Gas (GHG) and Energy Mitigation for the Transportation
Sector: Recommended Research and Evaluation Program. Transportation Research
Board of the National Academies, Washington, D.C.
McNeil, S. 2009. Adaptation Research Programs and Funding. Transportation Research
Board of the National Academies, Washington, D.C.
TRB. 2007. Special Report 288: Metropolitan Travel Forecasting: Current Practice and
Future Direction. National Academies, Washington, D.C.
Whitty, J. M., and J. R. Svadlenak. 2009. Discerning the Pathway to Implementation of
a National Mileage-Based Charging System. Transportation Research Board of the
National Academies, Washington, D.C.