INNOVATIVE SAFETY PROJECT ANALYSIS · 15/10/2014  · Mi Familia . 1 . INNOVATIVE SAFETY PROJECT...

Mi Familia

1

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

4

6

7-11

12-15

16-22

23-25

5

28-32

Introduction: Highway Safety Improvement Program

Safety Project Analysis Summary

Data Processing

Development of Maps

Identification of Projects

Identification of Project Limits

Conclusion

1

2

3

4

5

6

7

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

6

Summary

Safety Project Analysis

Project Analysis

7

Microsoft Excel ArcGIS

STEP 1 Data Processing

2011-2013 All Fatal and Incapacitating Crashes

9

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

10

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

11

Rumble Strips Master Plan

Project Analysis

12

ArcGIS

STEP 2 Development of Maps

13

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)

14

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)

15

Filtered Fatal and Incapacitating crashes for WCs: 514 and 515

Project Analysis

16

Data Extraction- Google Earth

STEP 3 Project Identification

17

18

DEMO

19

Incapacitating crash Nueces County July 01, 2014

20

Project Analysis

21

What-If-Analysis Backward Calculation of SII

STEP 4 Identification of Project Limits

22

What-If-Analysis & Backward Calculations of SII

23

24

Program Call Summary

2014 HSIP Call Summary Table

25

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

26

3

5

24

5

12

14

Number of Projects Awarded

WidenCurveTexturingIntersectionOff-SystemHSIP

27

2014 HSIP Awarded Projects

Applying these tools and techniques , CRP achieved the following:

28

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:

29

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

30

31

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

32

Fatal and Incapacitating crashes for WCs: 307 HFST at Intersection

33

Fatal and Incapacitating crashes for WCs 502 and 503

Attribute Table of a Crash

34

Attribute table of a single crash record

Cable Barrier Master Plan

35

Attribute table of a single roadway

segment

36

DEMO