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(e.g., congestion measures, crash reduction, and environ- Introduction to the Scenarios
mental impact);
· System-level performance measures. Measure the cumu- Table 2.1 describes the five scenarios that can help an
lative effect of investment strategies at the systems level agency or group of agencies apply network-level performance
(e.g., air quality measures for conformity analysis); measures.
· A project selection process that compares benefits and The scenarios reflect one or more case studies conducted for
impact across multiple modes and investment strategies; this project. For most of the scenarios, a primary case study is
and identified in the table, but information from other case studies
· Project development activities that ensure investment pri- is also presented. The complete set of case studies conducted
orities are established using one set of metrics throughout for the project is available in Appendix B. Select literature that
the project development process. was the foundation of this effort is discussed in Appendix A.
Table 2.1. Handbook scenarios.
Chapter Scenario Name Scenario Description Primary Case Studies
3 Regional Scenario State and regional policy, program, project, and Capital District
Defining Community operational decisions can have significant Transportation
Goals Across implications for local communities. Conversely, Commission planning
Jurisdictions local transportation projects and operational process
strategies can have impacts that are felt far beyond
the borders of the municipal boundaries. Statewide
and regional entities are working collaboratively
with local governments and transportation providers
to assess the impacts of these decisions on a
systems level and fully understand and plan for the
implications.
4 Regional Scenario Decreasing resources and an interest in funding Bay Area Metropolitan
Multimodal and projects with the most favorable benefitcost ratio Planning Commission
Multistrategy has increased the interest in analyzing all projects Transportation 2035
Investment across a system for planning and programming Plan: Change in Motion
Prioritization purposes. These efforts typically include many
entities with varying responsibilities for the
transportation network.
5 Peer-to-Peer Many key corridors throughout the country cross Mid-Atlantic Rail
Scenario Multistate state boundaries, creating a complex web of Operations Study, I-95
Partnership for System players who are responsible for the planning and Vehicle Probe Study
Operations operations of what for users is a single
transportation network. Infrastructure improvements
that directly address a problem for one mode may
have important impacts (both negative and positive)
for other modes. Without the data to analyze these
improvements across state lines and among
agencies, and without the forum to vet and discuss
the implications, the most effective investment
decisions may be lost.
6 Peer-to-Peer As metropolitan regions expand, they become San Joaquin Valley
Scenario increasingly linked via economic interdependence Partnership Regional
Megaregional and common transportation corridors and networks. Blueprint
Partnership to Address These new "megaregions" share common issues,
Growth including economic growth, environmental
concerns, and mobility. As the regions expand,
there is an increased need for planning and
operations considerations among existing
jurisdictions and agencies, including both those that
cross state boundaries and those that fall within
one state.
7 Intra-agency Several agencies have addressed network Oregon Transportation
Scenario Linking performance within the context of a single agency. Plan update,
Planning and State DOTs are increasingly recognizing the need Washington State Gray
Operations at a State to link their planning and operations investments Notebook
DOT both to better address issues such as reliability and
to share investments in data collection and tool
development.
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The scenario chapters are organized in the same way to aid Define Performance Measurement Framework. Early
in connecting the information presented in this section to the in the process, it is important to establish a common
specific scenario. The organization is as follows: set of goals and objectives between agencies and identify
modes and strategies to be considered. This building
· Scenario. A short description of the basic motivation for
block addresses the steps in the network performance
and components of the scenario.
measurement process to define the network and iden-
· Case Studies. A summary of the primary case study used
tify strategies.
to illustrate the scenario and identification of additional
case studies. Develop Measurement and Data Collection Method-
· Building blocks. The scenarios describe specific applica- ologies. Network performance analysis requires data
tions of network performance, but a common set of build- and analysis tools to be able to capture strategies that
ing blocks also has been identified. These building blocks cross jurisdictions or can apply to multiple modes. In
include the following: some cases, data may already exist and need to be inte-
Establish Partnership Agreements. This building block grated, but in others new data may need to be col-
addresses the first step in the network performance lected. Performance measures also need to be defined.
process: setting up a partnership among agencies or dif- This building block addresses two steps of the net-
ferent departments within an agency. These partner- work performance process: developing performance
ships set the stage for using network performance to measures and using measures to address network
address a specific challenge. performance.
