A Method For Measuring Accuracy of Real-time Construction Information Dissemination To

Travelers Using Traffic CamerasPresented By

MD TOUSHIK AHMED NILOY

Southern Illinois University Edwardsville

Ohio Transportation Engineering Conference

October 25 1

Introduction

• Real-time System Management Information Program (RTSMIP)

• 23 CFR 511 Regulation

• Two steps implementation of RTSMIP required

Interstate operational

Routes of Significance in MSAs operational

2

23 CFR 511 Regulation

• Include Requirements

Timeliness – disseminate real-time information

10 mins for metropolitan areas

20 mins for outside metropolitan areas

Accuracy

Availability

• Accuracy threshold minimum 85%

• Available threshold 90%

3

IDOT’s Measuring Method • Method requires an annual review

Travel time

Construction information

Incident information

Weather information

• Randomly select 25%

• Lane openings categories

No closure

Partial or full closure

4

Objectives

• To present a method to review the accuracy of real-time traveler

information about lane- or road-closing construction projects in

metropolitan areas that must 20 comply with 23 CFR 511

• Presents a case study to demonstrate how the propose method could

apply to metropolitan areas throughout the US

5

DOTs’ Information Dissemination

• VDOT- Though mall on large screens

• DCDOT- Dynamic Message Signs, traffic camera

• NJDOT- Trumpet, CCTV, Social Media

• IDOT- Getting around IL &

Travel Midwest Website

• FDOT- 511 information system 6

DOTs’ Information Dissemination

• CALTRANS- ITS Tool & 511 Information System

• WSDOT- Website & Social Media

• NMDOT- CCTV, DMS & PDMS

• NDDOT- CCTV, DMS & PDMS

• NDOT- Changeable message signs

• NCDOT- PDMS, CCTV & Sensors 7

Proposed Method for Evaluation

8

Reported information & Accuracy

• Reported to the public

Full or partial closure

Road segment of closure

Start time of closure

End time of closure

9

Construction Projects

10

Summary of Construction Projects

11

RESULTS

12

RESULTS

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CONCLUSION & RECOMMENDATIONS

• Traffic camera assessed- 62% projects

• Manual observations- rural areas

• Real-time streaming traffic cameras information

• Traffic camera maintance

• Statewide traffic management center

• Setup more Traffic camera 14

15

QUESTIONS

16