Figure 4 "Raw" Annual KAB Crash in Crashes per MVMT by County: Highest, Lowest, and Average Rates, 1992-1999

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On rural, 2-lane, low-volume, on-system roads

Figure 11 Locations of KAB Crashes on the State-Maintained Highway Network of a Texas County in 1999

Roadway Traffic Crash Mapping: A Space-Time Modeling Approach

Shaw-Pin Miaou* Texas Transportation Institute Joon Jin Song* Bani K. Mallick* Texas A&M University

Mapping transforms spatial data into a visual form, enhancing the ability of users to observe,...

Figure 7 Proportion of KAB Crashes1 that Occurred Under Wet Pavement Conditions for Each County: 1999

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In percent; averaged over 6 neighboring counties

County average (8 yrs) = 13% County average (1999) =...

Figure 1 Georgraphic Districts, Counties, and Urbanized Areas in Texas

Note: The Texas Department of Transportation has 25 geographic districts; each district contains 6 to 17 counties, and gray areas show urbanized area contained in each...

Figure 6 Proportion of KAB Crashes1 that Occured on Sharp Horizontal Curves in Each County

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In percent; averaged over the 1992-1999 period and 6 neighboring counties

Figure 3 Vehicle-Miles Traveled on Rural, 2-Lane, Low-Volume, On-System Roads in Each Texas County: 1999

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In millions of vehicle-miles traveled or MVMT

Total = 10,561 MVMT

Note: Low-...

Figure 10 Estimated KAB Crash Rates1 in Crashes per MVMT by County from Model 27: 1999

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97.5 percentile, mean, and 2.5 percentile of the posterior density

Figure 8 Proportion of KAB Crashes1 that were Intersection, Intersection Related, or Driveway Access Related for Each County: 1999

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In percent

State average (1999) = 33% Intersection/driveway access =...

Figure 2 Number of KAB Crashes on Rural, 2-Lane, Low-Volume, On-System Roads in Each Texas County: 1999

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