Visualization of Highway Performance Measures (2022) / Chapter Skim
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21 The survey (Appendix A) was sent to 50 state DOTs and the District of Columbia.
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22 Visualization of Highway Performance Measures PM1 (Safety Condition) , PM2 (Infrastructure Condition)
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Survey Results 23 Table 2. Results of Question 2.
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24 Visualization of Highway Performance Measures performance measures in a bar chart. Internal DOT analysts and internal leadership are the primary audiences.
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Survey Results 25 Utah DOT has clearly de ned their audiences and how they are prioritized. e Governor's O ce and the legislature are their designated primary audience, while they have de ned the general public (as investors in the system)
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26 Visualization of Highway Performance Measures This question explored the types of visualizations that were created for the different audiences. The Washington State DOT case example shows many instances of simple line, bar, and pie charts and tables, and explains the thinking about creating them for their audience.
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Survey Results 27 Figure 13. Examples of complex charts.
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28 Visualization of Highway Performance Measures Performance Measure Visualization Examples and Purpose Questions 7–12 asked the DOTs to share examples about the purpose of performance measure visualizations. e categories progressed from simply documenting the current status to showing a trend over time, to communicating progress toward a target, to helping to tell a performance story.
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Survey Results 29 Figure 16. Document current status.
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30 Visualization of Highway Performance Measures Figure 17. Show trend over time.
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Survey Results 31 Figure 18. Communicate progress toward a target.
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32 Visualization of Highway Performance Measures Figure 19. Help tell a performance story.
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Survey Results 33 Figure 20. Support a policy.
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34 Visualization of Highway Performance Measures Figure 21. Inform long-term planning.
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Survey Results 35 Figure 22. Inform medium-term planning.
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36 Visualization of Highway Performance Measures Figure 24. Survey results for Question 12: Is a dashboard used by analysts only available inside your agency?
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Survey Results 37 Software Tools Used So far, this chapter has shown examples from DOTs that range from the simplest charts to sophisticated dashboards. This section examines the choice of tools used by DOTs to create these visualizations.
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38 Visualization of Highway Performance Measures information together in logical paths that can be used to guide the audience through a performance story or allow them to choose their own path to view the data that provides the answer to their question. Eighteen DOTs reported using Oracle.
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Survey Results 39 Graphics Tools Nineteen DOTs reported using Adobe Creative Suite. It provides a number of tools that create graphics that help tell performance stories.
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40 Visualization of Highway Performance Measures Question 6 of the survey asked agencies if, once a visualization has been created, "you have a method for evaluating the effectiveness of your performance measure visualizations? " As shown in Figure 27, seven DOTs responded that they had a method for evaluating the effectiveness, and 38 DOTs responded that they did not have a formal method for evaluating the effectiveness of their performance measure visualizations.
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Survey Results 41 Figure 28. Performance highlight from Pennsylvania.
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42 Visualization of Highway Performance Measures Figure 29. Performance highlight from Washington, DC.
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Survey Results 43 Figure 30. Performance highlight from Idaho.
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44 Visualization of Highway Performance Measures Figure 31. Performance highlight from Rhode Island.
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Survey Results 45 Figure 32. Performance highlight from Virginia.
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46 Visualization of Highway Performance Measures Figure 33. Performance highlight from Ohio.
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Survey Results 47 Figure 34. Performance highlight from Iowa.
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48 Visualization of Highway Performance Measures Survey Summary The survey reported that visualization is used for the following purposes: To tell a DOT's performance story by • Documenting current status, • Showing trends over time, • Showing progress toward a target, • Helping to tell a performance story, • Supporting a policy, • Informing long-term planning, • Informing medium-term planning, and • Informing day-to-day operations. To communicate the message of the story, using • Simple charts, • Infographics, • Maps, and • Dashboards.
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