Work Zone Safety - 2016
ATSSA Meeting
Work Zone Safety - 2016 Mischa Kachler, P.E. INDOT Work Zone Safety Section December, 2016
Work Zone Safety - 2016 Outline •
• •
•
Changes within the Work Zone Safety Section Common Problems Found in Work Zones Work Zone Crashes Work Zone Safety Reviews
2
Changes within the Work Zone Safety Section •
Staff • •
•
•
Org. Structure: Supervisor and 3 Engineers Currently: Supervisor and 2 Engineers All New Staff (Feb, May & July Start Dates)
Direction of the Section • • • •
Goal: Improve Effectiveness Identified 6 Core Functions Operational Changes through Policy Changes Result: Greater Focus on Work Zone Reviews
3
Changes within the Work Zone Safety Section Core Function1: Education & Training • •
• •
Work Zone Safety Training IHCP Policy & Exception Training Queue Analysis Training Target Audiences: • • •
Construction Personnel Consultants/Designers and Reviewers District Staff
4
Changes within the Work Zone Safety Section Core Function 2: IHCP Exceptions •
•
Exceptions are required for Interstate restrictions that exceed IHCP allowances 2016 To Date: • • •
142 Completed 12 Currently Under Review Greenfield: 60% LaPorte: Seymour: 13% Crawfordsville: Ft Wayne: 9% Seymour:
9% 8% 1%
5
Changes within the Work Zone Safety Section Core Function 3: Reviews •
Work Zone Review • •
Technical, Operational and Hybrid 2016 to Date: (Late start—July) • •
• •
18 Formal Reviews Approximately 10 Informal Reviews
Work Zone Related Fatal Crash FHWA Biennial Process Review
6
Changes within the Work Zone Safety Section Core Function 4: Innovation •
Find new technologies and review for implementation into work zones • •
• •
Portable Temporary Rumble Strips 42 in. Channelizers
Meet with work zone product vendors Research projects with Purdue/JTRP •
LiDAR-Based Mobile Mapping System for Lane Width Evaluation & Reporting 7
Changes within the Work Zone Safety Section Core Function 5: Policies & Committees •
Policies: •
• •
•
IN Work Zone Mobility & Safety Policy (pursuant to 23 CFR 630 Subpart J & K) Interstate Highways Congestion Policy Work Zone Guidelines
Committees & Subcommittees: •
•
Traffic Standards TMA’s
• •
Variable Speed Limits New Products Evaluation 8
Changes within the Work Zone Safety Section Core Function 6: Subject Matter Resource • •
•
Project Specific TTC Related Assistance Project Coordination & Planning Review of Design Exceptions, MOT Plans, Special Provisions
9
Work Zone Safety - 2016 Outline •
• •
•
Changes within the Work Zone Safety Section Common Problems Found in Work Zones Work Zone Crashes Work Zone Safety Reviews
10
Common Problems Found in Work Zones Typically each year •
•
•
The types of problems encountered are recorded A year-end report of the most frequently encountered issues is sent to the Districts The goal is to improve upon the cited issues during the following construction season
11
Common Problems Found in Work Zones Temporary Work Site Speed Limit Sign Assemblies • •
• •
No Official Action or Authorization Forms Incorrect decrements to reduce Speed Limit Missing “Work Site” plaques Existing signs improperly or not covered
12
Common Problems Found in Work Zones Temporary Work Site Speed Limit Sign Assemblies
13
Common Problems Found in Work Zones Temporary Concrete Barrier Issues •
At flare tapers: • •
•
No buffer space provided in advance of barrier Barrier incorrectly used to delineate lane shift tapers
Delineators on side and top missing or poorly spaced
14
Common Problems Found in Work Zones Temporary Concrete Barrier Issues
15
Common Problems Found in Work Zones Removal of Existing Pavement Markings •
Confusing/conflicting pavement markings due to: • •
Incomplete removal Not removing the existing marking and applying marking on top
16
Common Problems Found in Work Zones Removal of Existing Pavement Markings
17
Common Problems Found in Work Zones Removal of Existing Pavement Markings
18
Common Problems Found in Work Zones Entrance Ramp Issues •
•
Insufficient acceleration distance provided even if there is room to do so Yield sign locations too late and too close to end of ramp
19
Common Problems Found in Work Zones Entrance Ramp Issues
20
Common Problems Found in Work Zones Construction Drums • •
•
Inconsistent spacing and alignment Gaps in a line of drums, which is especially problematic at exits Drums pushed into travel lanes at work sites
21
Work Zone Safety - 2016 Outline •
• •
•
Changes within the Work Zone Safety Section Common Problems Found in Work Zones Work Zone Crashes Work Zone Safety Reviews
22
Work Zone Crashes Crash Data (Unofficial)
CHART REMOVED FOR PROPRIETARY REASONS
SOURCE:
ARIES CRASH REPORTING SYSTEM Includes records for all INDOT routes with “Construction Indicator” marked “YES” PREPARED BY KIM PETERS, INDOT TMC
23
Work Zone Crashes Back of Queue •
•
In the past, 6 out of 8 fatal work zone crashes involved a queue Interstate traffic is conditioned to uninterrupted, high speed flow, and may not stop in time for stopped traffic
24
Work Zone Crashes Back of Queue (Cont.) •
•
End of queue crashes are often deadly as they involve a high speed vehicle striking a stopped/slow vehicle Work zones with consistent daily queuing should consider countermeasures
25
Work Zone Safety - 2016 Outline •
• •
•
Changes within the Work Zone Safety Section Common Problems Found in Work Zones Work Zone Crashes Work Zone Safety Reviews
26
Work Zone Safety Reviews The goals of work zone reviews: •
• •
Provide TTC guidance and assistance to the PE/PS in the field Find potential safety and mobility issues TTC Quality Assurance and Quality Control (QA/QC)
27
Work Zone Safety Reviews Types of Work Zone Reviews • •
•
Technical (QA/QC) Reviews Operational Reviews Hybrid Reviews
28
Work Zone Safety Reviews Technical (QA/QC) Reviews •
• •
Focus on the quality of TTC devices and setup with an emphasis on a technical compliance with the MOT Plans & IMUTCD Are systematic and follow a checklist Are often the exclusive review type used on projects where low volume or low speed conditions exist
29
Technical (QA/QC) Reviews
30
Work Zone Safety Reviews Operational Reviews •
•
Focus on the effectiveness of the TTC deployment Are concerned with traffic backups, traffic confusion, and traffic entering the work zone
31
Work Zone Safety Reviews Operational Reviews (Cont.) •
•
•
Are the typical review type for projects located on high volume or high speed roads Aspects of a QA/QC review may be incorporated as needed Will involve measuring traffic speeds, queue length, and volume throughput
32
Work Zone Safety - 2016 Work Zone Safety Section Contact Information Gerry Montgomery, P.E. Work Zone Safety Engineer
[email protected] (317) 899 - 8627
Colin O’Keefe Work Zone Safety Engineer
[email protected] (317) 899 - 8632
Mischa Kachler, P.E. Supervisor
[email protected] (317) 899 - 8604
33
Work Zone Safety - 2016 Mischa Kachler, P.E. INDOT Work Zone Safety Section December, 2016
Work Zone Safety - 2016 Outline •
• •
•
Changes within the Work Zone Safety Section Common Problems Found in Work Zones Work Zone Crashes Work Zone Safety Reviews
2
Changes within the Work Zone Safety Section •
Staff • •
•
•
Org. Structure: Supervisor and 3 Engineers Currently: Supervisor and 2 Engineers All New Staff (Feb, May & July Start Dates)
Direction of the Section • • • •
Goal: Improve Effectiveness Identified 6 Core Functions Operational Changes through Policy Changes Result: Greater Focus on Work Zone Reviews
3
Changes within the Work Zone Safety Section Core Function1: Education & Training • •
• •
Work Zone Safety Training IHCP Policy & Exception Training Queue Analysis Training Target Audiences: • • •
Construction Personnel Consultants/Designers and Reviewers District Staff
4
Changes within the Work Zone Safety Section Core Function 2: IHCP Exceptions •
•
Exceptions are required for Interstate restrictions that exceed IHCP allowances 2016 To Date: • • •
142 Completed 12 Currently Under Review Greenfield: 60% LaPorte: Seymour: 13% Crawfordsville: Ft Wayne: 9% Seymour:
9% 8% 1%
5
Changes within the Work Zone Safety Section Core Function 3: Reviews •
Work Zone Review • •
Technical, Operational and Hybrid 2016 to Date: (Late start—July) • •
• •
18 Formal Reviews Approximately 10 Informal Reviews
Work Zone Related Fatal Crash FHWA Biennial Process Review
6
Changes within the Work Zone Safety Section Core Function 4: Innovation •
Find new technologies and review for implementation into work zones • •
• •
Portable Temporary Rumble Strips 42 in. Channelizers
Meet with work zone product vendors Research projects with Purdue/JTRP •
LiDAR-Based Mobile Mapping System for Lane Width Evaluation & Reporting 7
Changes within the Work Zone Safety Section Core Function 5: Policies & Committees •
Policies: •
• •
•
IN Work Zone Mobility & Safety Policy (pursuant to 23 CFR 630 Subpart J & K) Interstate Highways Congestion Policy Work Zone Guidelines
Committees & Subcommittees: •
•
Traffic Standards TMA’s
• •
Variable Speed Limits New Products Evaluation 8
Changes within the Work Zone Safety Section Core Function 6: Subject Matter Resource • •
•
Project Specific TTC Related Assistance Project Coordination & Planning Review of Design Exceptions, MOT Plans, Special Provisions
9
Work Zone Safety - 2016 Outline •
• •
•
Changes within the Work Zone Safety Section Common Problems Found in Work Zones Work Zone Crashes Work Zone Safety Reviews
10
Common Problems Found in Work Zones Typically each year •
•
•
The types of problems encountered are recorded A year-end report of the most frequently encountered issues is sent to the Districts The goal is to improve upon the cited issues during the following construction season
11
Common Problems Found in Work Zones Temporary Work Site Speed Limit Sign Assemblies • •
• •
No Official Action or Authorization Forms Incorrect decrements to reduce Speed Limit Missing “Work Site” plaques Existing signs improperly or not covered
12
Common Problems Found in Work Zones Temporary Work Site Speed Limit Sign Assemblies
13
Common Problems Found in Work Zones Temporary Concrete Barrier Issues •
At flare tapers: • •
•
No buffer space provided in advance of barrier Barrier incorrectly used to delineate lane shift tapers
Delineators on side and top missing or poorly spaced
14
Common Problems Found in Work Zones Temporary Concrete Barrier Issues
15
Common Problems Found in Work Zones Removal of Existing Pavement Markings •
Confusing/conflicting pavement markings due to: • •
Incomplete removal Not removing the existing marking and applying marking on top
16
Common Problems Found in Work Zones Removal of Existing Pavement Markings
17
Common Problems Found in Work Zones Removal of Existing Pavement Markings
18
Common Problems Found in Work Zones Entrance Ramp Issues •
•
Insufficient acceleration distance provided even if there is room to do so Yield sign locations too late and too close to end of ramp
19
Common Problems Found in Work Zones Entrance Ramp Issues
20
Common Problems Found in Work Zones Construction Drums • •
•
Inconsistent spacing and alignment Gaps in a line of drums, which is especially problematic at exits Drums pushed into travel lanes at work sites
21
Work Zone Safety - 2016 Outline •
• •
•
Changes within the Work Zone Safety Section Common Problems Found in Work Zones Work Zone Crashes Work Zone Safety Reviews
22
Work Zone Crashes Crash Data (Unofficial)
CHART REMOVED FOR PROPRIETARY REASONS
SOURCE:
ARIES CRASH REPORTING SYSTEM Includes records for all INDOT routes with “Construction Indicator” marked “YES” PREPARED BY KIM PETERS, INDOT TMC
23
Work Zone Crashes Back of Queue •
•
In the past, 6 out of 8 fatal work zone crashes involved a queue Interstate traffic is conditioned to uninterrupted, high speed flow, and may not stop in time for stopped traffic
24
Work Zone Crashes Back of Queue (Cont.) •
•
End of queue crashes are often deadly as they involve a high speed vehicle striking a stopped/slow vehicle Work zones with consistent daily queuing should consider countermeasures
25
Work Zone Safety - 2016 Outline •
• •
•
Changes within the Work Zone Safety Section Common Problems Found in Work Zones Work Zone Crashes Work Zone Safety Reviews
26
Work Zone Safety Reviews The goals of work zone reviews: •
• •
Provide TTC guidance and assistance to the PE/PS in the field Find potential safety and mobility issues TTC Quality Assurance and Quality Control (QA/QC)
27
Work Zone Safety Reviews Types of Work Zone Reviews • •
•
Technical (QA/QC) Reviews Operational Reviews Hybrid Reviews
28
Work Zone Safety Reviews Technical (QA/QC) Reviews •
• •
Focus on the quality of TTC devices and setup with an emphasis on a technical compliance with the MOT Plans & IMUTCD Are systematic and follow a checklist Are often the exclusive review type used on projects where low volume or low speed conditions exist
29
Technical (QA/QC) Reviews
30
Work Zone Safety Reviews Operational Reviews •
•
Focus on the effectiveness of the TTC deployment Are concerned with traffic backups, traffic confusion, and traffic entering the work zone
31
Work Zone Safety Reviews Operational Reviews (Cont.) •
•
•
Are the typical review type for projects located on high volume or high speed roads Aspects of a QA/QC review may be incorporated as needed Will involve measuring traffic speeds, queue length, and volume throughput
32
Work Zone Safety - 2016 Work Zone Safety Section Contact Information Gerry Montgomery, P.E. Work Zone Safety Engineer
[email protected] (317) 899 - 8627
Colin O’Keefe Work Zone Safety Engineer
[email protected] (317) 899 - 8632
Mischa Kachler, P.E. Supervisor
[email protected] (317) 899 - 8604
33
