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TRB’s second Strategic Highway Research Program (SHRP 2) Reliability Project L38 has released a prepublication, non-edited version of a report that tested SHRP 2's reliability analytical products at a Southern California pilot site. The Southern California site focused on two freeway facilities: I-210 in Los Angeles County and I-5 in Orange County. The pilot testing demonstrates that the reliability analysis tools have the potential for modeling reliability impacts but require some modifications before they are ready for use by agencies.

Other pilots were conducted in Minnesota, Florida, and Washington.

Topics

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2014. Pilot Testing of SHRP 2 Reliability Data and Analytical Products: Southern California. Washington, DC: The National Academies Press. https://doi.org/10.17226/22332.

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Publication Info

8.5 x 11 |  DOI: https://doi.org/10.17226/22332
Chapters skim
Report Contents 1-7
SHRP 2 L38 Project 8-8
Southern California Pilot Site 9-10
Research Approach 11-11
Analysis of Existing Conditions 12-13
SHRP 2 Analysis Tools 14-14
Benefit-Cost Findings 15-16
Technical Feasibility of Products 17-17
Decision Maker Perceptions 18-18
SHRP 2 Tool Modifications 19-19
Reliability Performance Measures 20-20
Suggested Research 21-22
1.1 Introduction 23-23
1.2 Southern California Pilot Site 24-26
1.3 Organization of the Report 27-31
3.1 Selection of Facilities 32-33
3.2 Final Test Facilities 34-48
4.2 Overview of the L02 Guide 49-49
4.3 Evaluation of the L02 Guide 50-50
4.4 Average Route Travel Times Based on Infrastructure Sensor Data 51-60
4.5 See What Factors Affect Reliability (AE1) 61-74
4.6 Assess the Contributions of the Factors (AE2) 75-76
5.1 Overview of the C11 Reliability Analysis Tool 77-77
5.2 Limitations of the C11 Reliability Analysis Tool 78-82
5.3 Baseline Condition Estimation of the C11 Reliability Analysis Tool 83-86
5.4 Results of the I-5 Scenario Testing 87-97
5.5 Results of the I-210 Scenario Testing 98-106
6.1 Overview of the L07 Analysis Tool 107-107
6.2 Limitations of the L07 Analysis Tool 108-116
6.3 Baseline Condition Estimation of the L07 Analysis Tool 117-119
6.4 Results of the I-5 Scenario Testing 120-126
6.5 Results of the I-210 Scenario Testing 127-138
7.2 Limitations of FREEVAL-RL 139-144
7.3 Base Model Development 145-148
7.4 Model Calibration 149-154
7.5 Scenario Testing 155-180
8.1 Use of the C11 Tool 181-182
8.2 Procedure for Estimating Reliability Benefits 183-186
8.3 Benefit-Cost Results 187-193
8.4 Implications for Decision Making 194-196
9.1 Technical Feasibility of Products 197-200
9.2 Decision Maker Perceptions 201-202
9.3 Impacts on Decision Making 203-203
10.1 Conclusions 204-206
10.2 Suggested Research 207-209

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