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6 (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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7 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.