Mi Familia

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INNOVATIVE SAFETY PROJECT ANALYSIS MARIELA GARZA, CORPUS CHRISTI DISTRICT IOANNIS TSAPAKIS, TTI OCTOBER 15, 2014

HIGHWAY SAFETY IMPROVEMENT PROGRAM (HSIP) Tools and Techniques Used to Identify Projects Qualifying for Roadway Safety Improvements

Table of Contents

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7-11

12-15

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23-25

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28-32

Introduction: Highway Safety Improvement Program

Safety Project Analysis Summary

Data Processing

Development of Maps

Identification of Projects

Identification of Project Limits

Conclusion

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Highway Safety Improvement Program (HSIP)

Achieve a significant reduction in traffic fatalities and serious injuries on all public roads. HSIP call is federally funded. Crash Data: Crash Records Information System (CRIS) Categories of Work:

Widen Grade Separation Curve Texturing Intersection Off-System HSIP

Engineering Countermeasures- Work Codes Project Documentation: Submission Form, SII report, Estimate,

Typical Sections, Intersection Layouts, and Warrants 5

Project Analysis

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Summary

Safety Project Analysis

Project Analysis

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Microsoft Excel ArcGIS

STEP 1 Data Processing

2011-2013 All Fatal and Incapacitating Crashes

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Filtered Fatal and Incapacitating Crashes for WCs: 304, 305, 514

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Filtered Fatal and Incapacitating Crashes for WCs: 532, 533, 542

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Rumble Strips Master Plan

Project Analysis

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ArcGIS

STEP 2 Development of Maps

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Example of a district map showing: • narrow roads (<24 ft.), • crashes on horizontal

curves, and • crash locations

qualifying for additional paved surface width (WC 541)

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Example of a county map showing crash locations qualifying for: • installing traffic

signals (WC 107), • improving traffic

signals (WC 108), and

• interconnecting traffic signals (WC 111)

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Filtered Fatal and Incapacitating crashes for WCs: 514 and 515

Project Analysis

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Data Extraction- Google Earth

STEP 3 Project Identification

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DEMO

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Incapacitating crash Nueces County July 01, 2014

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Project Analysis

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What-If-Analysis Backward Calculation of SII

STEP 4 Identification of Project Limits

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What-If-Analysis & Backward Calculations of SII

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Program Call Summary

2014 HSIP Call Summary Table

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Category # Projects Submitted

# Projects Awarded

Amount Funded ($)

Widen 31 3 $1,671,842

Grade Separation

4 0 $0

Curve 7 5 $808,050

Texturing 26 24 $5,575,454

Intersection 23 5 $2,085,724

Off-System 17 12 $5,745,042

HSIP 40 14 $7,447,277

TOTAL 148 63 $23,333,389

2014 HSIP Call

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Number of Projects Awarded

WidenCurveTexturingIntersectionOff-SystemHSIP

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2014 HSIP Awarded Projects

Applying these tools and techniques , CRP achieved the following:

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HSIP Call # Projects Submitted

# Projects Awarded

Amount Funded ($)

2013 47 13 $10.0 M 2014 148 63 $23.3 M

Improvement (%) 215 % 385 % 133 %

For more information:

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Mariela Garza Engineering Assistant Texas Department of Transportation (TxDOT) 1701 S. Padre Island Drive Corpus Christi, Texas 78416 E: mariela.garza@txdot.gov P: (361) 808-2305 Ioannis Tsapakis, Ph.D. Assistant Research Scientist Texas A&M Transportation Institute (TTI) 1110 NW Loop 410, Suite 400 San Antonio, TX 78213 E: i-tsapakis@tamu.edu P: (210) 321-1217

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Fatal and Incapacitating crashes for WCs: 107,108 and 111

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Fatal and Incapacitating crashes for WCs: 307 HFST at Intersection

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Fatal and Incapacitating crashes for WCs 502 and 503

Attribute Table of a Crash

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Attribute table of a single crash record

Cable Barrier Master Plan

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Attribute table of a single roadway

segment

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DEMO