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32 CHAPTER 8 Conclusion Network performance analysis is part of a broad trend by In the megaregional scenario, several organizations con- transportation agencies toward using performance measures tributed important roles, including technical support, to support transportation programming and investment partnership facilitation, and others. The regional agencies decisions. Agencies are recognizing the need to evaluate the involved already were familiar with one another. transportation system as a network because of the various agencies, modes, and strategies that contribute to overall Performance Measurement Framework performance. This guidebook has provided examples of how transporta- A framework for establishing performance measures is a tion agencies are implementing network performance to critical component of establishing network performance. The address congestion and system operations. Though network framework helps a set of agencies define the transportation performance analysis has possible implications for all types of network under consideration, the relevant strategies to evalu- transportation investments, much of the work to date has ate, and the measures to help assess network performance. focused on these challenges. The development of a framework is likely to be closely tailored to the specific parties involved and the issues of interest at the time. Each of the scenarios outlined developed unique frame- Summary of Building Blocks works for network performance, with different strategies and The guidebook has identified three key building blocks outcomes. needed to support network performance analysis. This section For example, in the multistate scenario, the performance summarizes the key findings from the guidebook. measurement framework provided a means to consider the appropriate mix of public and private investment in various rail infrastructure projects. In the regional scenarios, the Partnerships framework was built to help MPOs expand their area of con- The scenarios have been organized around three basic types cern to address investments and policy changes such as relia- of partnerships: regional, peer-to-peer, and intra-agency. bility, land use, pricing, and other nontraditional investments. Though partnerships have been important for all of these Network performance analysis helps illustrate the impact of scenarios, there are some clear differences. various types of investments and policies on overall system Regional and intra-agency scenarios are less in need of a performance. separate organization or formal partnership. Even the formal A framework should provide focused and clearly articulated partnerships set up as part of the intra-agency scenario are goals, carried through to the selection of performance mea- committees that can be created by directive. sures, to elicit support from participants. A well-stated agenda Where formal partnerships exist, a range of approaches opens doors to collaboration. may apply: Data/Methodology In the multistate scenario, a strong independent organization focused on multistate objectives led the effort. Project- Data and tools are a central part of considering network per- specific steering committees also may be needed to draw in formance. A basic question of network performance is whether other relevant partners. or not new measures are required. The research generally