Traffic Control Planning and Layout

Slide 2 © Course Introduction Unit 1 -Complying with Regulations and Standards Unit 2 -Traffic Control Devices and TCP’s Unit 3 -Planning and Setting Up Work Zones Assessment and Evaluation Agenda

Slide 3 © WorksafeBC Occupational Health and Safety Regulation The Traffic Control Manual for Work on Roadways (the Manual) The Motor Vehicle Act References

Slide 4 © Learning Objectives Use the OHS Regulation and T.C. Manual for Work on Roadways to make planning and layout decisions Identify, use and maintain traffic control devices Create a Traffic Control Plan for any work on roadways Lay out a work zone where TCPs are required Lay out a work zone where TCPs are not required …Continued

Slide 5 © …Learning Objectives Continued Adapt a Traffic Control Plan based on actual situation Monitor traffic control in a work zone to ensure optimal safety Work with the site superintendent, contractors or other municipal representatives to ensure traffic control issues are understood and site safety is optimized

Slide 6 © Complying with Regulations and Standards Unit 1

Slide 7 © Unit 1 Learning Objectives To use the WorksafeBC Regulation and guidelines and Traffic Control Manual for Work on Roadways to make planning and layout decisions. Participant Guide 1-3

Slide 8 © Traffic Control Worker’s Compensation Act Occupational Health and Safety Regulation (“The Regs.”) Guidelines and Standards Traffic Control Manual for Work On Roadways (“the Manual”) WorkSafeBC MOT Regulations and Standards Motor Vehicle Act and Reg. Participant Guide 1-3

Slide 9 © OH&S Regulation WorkSafeBC operates under the Authority of the Workers’ Compensation Act Regulations for traffic control Part 18 Guidelines provide interpretations for Part 18 Regulations refer to Traffic Control Manual for Work on Roadways (18.3) Participant Guide 1-3

Slide 10 © Key Points to Regulation Definitions “Traffic control” “Traffic control person” or “TCP” “Supervisor” Responsibility OH&S regulation takes precedence Participant Guide 1-4

Slide 11 © Traffic Control Supervision Regulation 18.4 states that a supervisor must be designated to ensure traffic control arrangements and procedures are implemented and requirements met Purpose of 18.4(2) is to ensure responsibility for supervision for traffic control operations is clearly established Participant Guide 1-5

Slide 12 © Motor Vehicle Act MVA regulates the movement of motor vehicles and pedestrians on public roads MVA and regulations give authority for the placement of traffic control devices Participant Guide 1-5

Slide 13 © Traffic Control Standards Developed by Ministry of Transportation WorkSafeBC has adopted TCM as a standard Office Edition & Field Edition 5 Chapters 1 General Instructions 2 Traffic Control Devices 3 Typical Traffic Control Layouts – Short Duration 4 Typical Traffic Control Layouts – Long Duration 5 Typical Traffic Control Layouts – Freeways Appendices Participant Guide 1-6

Slide 14 © Traffic Control Manual – Key Definitions (TCM pg 1.1.2) Long Duration Work – night time work or more than one daytime shift Short Duration Work – not more than one daytime shift Brief Duration Work – emergency, unprogrammed, 15 min or less Participant Guide 1-6

Slide 15 © Traffic Control Devices and Traffic Control Persons Unit 2

Slide 16 © Unit 2 Learning Objectives Identify traffic control devices Selecting correct traffic control devices Maintenance of traffic control devices Determining when TCP are required Conducting a job task analysis Participant Guide 2-3

Slide 17 © Traffic Control Devices All devices must meet 5 requirements: Fulfill a need Command Attention Convey a clear, simple meaning Provide adequate time for a proper response Command respect of road users Participant Guide 2-3

Slide 18 © Traffic Signs (TCM 2.2.1) Three types: Construction Maintenance ( ) Contain both regulatory and warning types Temporary Warning ( ) Warn public and traffic of hazards Black on orange Regulatory ( ) Impose legal requirements Black on white Participant Guide 2-4

Slide 19 © Channelizing Devices (TCM 2.2.2) Six types: Flexible drums Cones Temporary delineator posts Barricades Barriers Tubular markers

Slide 20 © Lighting Devices (TCM 2.2.3) Five types: Flashing yellow warning lights Flashing vehicle lights Flashing arrow boards Floodlights Steady burn warning lights

Slide 21 © Other Devices (TCM 2.2.4) Buffer and shadow vehicles Used to help protect workers High level warning devices Used in daylight only, most often in urban and rural areas Flags Required in speed zones >70km/h for temporary signs (C-4, C-36, C-58)

Slide 22 © Maintaining Devices Inspect and do not use devices that are: Dirty, worn Out of date/not up to standard Dented or damaged Worn or deteriorating Participant Guide 2-7

Slide 23 © When to Use TCPs Refer to WorksafeBC Regulation 18.6 Conduct a Job Task Analysis to determine the level of training required for TCPs at the site Participant Guide 2-8

Slide 24 © Planning and Laying Out Work Zones Unit 3

Slide 25 © Unit 3 Objectives Create a traffic control plan for work on roadways Lay out a work zone, with TCP or without Adapt a traffic control plan based on an actual situation Evaluate traffic control for effectiveness Work with all parties to ensure site safety is optimized Participant Guide 3-3

Slide 26 © Fundamental Principles (TCM 1.1.1) 1.Plan construction, maintenance and utility work with the safety of road users, pedestrians and workers in mind. 2.Traffic movement should be inhibited as little as possible. 3.Guide motorists in a clear and positive manner while they approach and go through work zones. …Continued Participant Guide 3-3

Slide 27 © …Principles Continued 4.Perform routine inspections of traffic control devices. 5.Roadside safety requires constant attention during the life of the work zone because of the potential increase in hazards.

Slide 28 © Traffic Control Plan A written plan is recommended Helps you to plan properly Helps to coordinate all site activities Helps you to communicate with workers and contractors Is a record of what you did Useful document when something goes wrong Use the correct template (your employer’s) Participant Guide 3-4

Slide 29 © Parts of a Work Zone Transition Area Participant Guide 3-6 Termination Area Work Area Advance Warning Area Buffer Space

Slide 30 © Advance Warning Area Tells motorists what to expect before they reach the work zone Gives enough time to adjust driving in response to the warning signs Participant Guide 3-7

Slide 31 © Transition Area Contains the tapers to close off the lane or lanes where the work is Participant Guide 3-7

Slide 32 © Buffer Space Between the Transition Area and the Work Area If distance permits, include a Buffer Space even when it may not appear to be necessary Helps to make the worksite safer for workers and motorists Participant Guide 3-8

Slide 33 © Work Area Area of the roadway or shoulder where the work is being done (closed to vehicle traffic and pedestrians) May remain in one place or move, depending on the type of job Participant Guide 3-8

Slide 34 © Termination Area Provides a short distance beyond the Work Area for the traffic to return to its normal lane or lanes Participant Guide 3-9

Slide 35 © Work Zone Planning The main factors to be considered when selecting a work zone layout include: Duration or type of project Road configurations Traffic variations Environmental conditions Worksite variations Principles in T.C. Manual Figures in T.C. Manual Participant Guide 3-9

Slide 36 © Table A Explained! Minimum meters it takes to lay out taper - normal lane width /no TCP Move the taper one meter into the lane every __ meters Place cones or markers every __ meters (Max) for 1a Tangent is the distance between the end of one taper and the beginning of the next (same direction of travel) Right now, Table A is the same for short and long duration work For shoulder work or with TCPs 30 Space between signs depends on speed 10 Traffic Control Manual – Chapter 3

Slide 37 © At 50 km/hr (min 3 cones) At 100 km/hr (min 3 markers) Lane Closure Tapers with TCP or Work on Shoulder Note: this example is for daytime, short duration (Table A) Not to Scale 05 m10 m15 m 1m 2m 3m 1m 2m 3m

Slide 38 © At 50 km/hr the taper ratio is 1:10 At 100 km/hr, the taper ratio is 1:30 Lane Closure Tapers No TCP Note: this example is for daytime, short duration (Table A) Not to Scale 10 m20 m30 m 0 1m 2m 3m 1m 2m 3m

Slide 39 © Lane Closure Taper If drivers’ sight is restricted (e.g., a sharp vertical or horizontal curve), taper should begin well in advance of the sight restriction. The beginning of a taper should not be hidden downstream of curves. Generally, tapers with no TCPs should be lengthened, not shortened, to increase their effectiveness.

Slide 40 © Traffic Control Devices - Placement Order Devices should be placed in the order that drivers will encounter them, starting with the sign or device furthest “upstream” from the Work Area and others successively as the work area is approached Other guidelines participants manual Participant Guide 3-15

Slide 41 © Traffic Flow Watch traffic to see if the taper is working correctly. Frequent use of brakes and skid marks my mean the taper is too short or the advance warning is inadequate. Long line-ups of vehicles will create frustration and may block other traffic flow

Slide 42 © Sample Figures from Chapter 3 Short Duration Work

Slide 43 © Chapter 3 - Short Duration

Slide 44 © Chapter 3 - Short Duration

Slide 45 © Chapter 3 - Short Duration Participant Guide 3-17

Slide 46 © Chapter 3 - Short Duration Participant Guide 3-17

Slide 47 © Chapter 3 - Short Duration

Slide 48 © Chapter 3 - Short Duration

Slide 49 © Chapter 3 - Short Duration

Slide 50 © Chapter 3 - Short Duration

Slide 51 © Sample Figures from Chapter 4 Long Duration Work

Slide 52 © Chapter 4 - Long Duration

Slide 53 © Chapter 4 - Long Duration

Slide 54 © Chapter 4 - Long Duration

Slide 55 © Chapter 4 - Long Duration

Slide 56 © Sample Figures from Chapter 5 Freeways

Slide 57 © Freeway Work Use Table B in Chapter 5 Note special requirements for size of signs Appendices

Slide 58 © Maintaining a Work Zone Traffic accidents Displaced or damaged devices Dead or low batteries or bulbs Regularly check equipment and placement for changes due to: Low fuel levels for generators wear and tear Dirt or snow on devices Vandalism or theft Participant Guide 3-18

Slide 59 © Removing a Work Zone As soon as the work is completed and traffic control devices are no longer needed, they must be removed Follow safe removal procedure depending on traffic volume Participant Guide 3-19

Slide 60 © Summary Follow the Traffic Control Manual, or improve upon it with good reason Traffic control is critically important Must have a Traffic Control Supervisor Must do a Job Task Analysis Traffic Control Plan is Recommended You must constantly maintain the traffic control in the Work Zone Do not use TCPs unless you need them

Slide 61 © Exercises

Slide 62 © Exercise 1 - Municipal Scenarios For the following scenarios use the Traffic Control Manual to identify what diagram most closely resembles what you would use when determining the traffic control layout.

Slide 63 © Municipal Scenario 1 Job Task: Hydrant Maintenance Utilities crew is parked on a residential road while performing maintenance on a fire hydrant. The job is expected to take more than 30 minutes Speed limit 50 km/h Road is low volume with no center line

Slide 64 © Correct Setup For Scenario 1 4*1b* C-4 4* MAR. 95 1b* 5.5 m minimum

Slide 65 © Municipal Scenario 2 Job Task: Flower Bed Maintenance Parks crew is shoveling bark mulch into a flower bed from a truck parked in the inside lane of a multilane roadway. The job is expected to take more than 30 minutes Speed limit 50 km/h Road is low volume with no center line

Slide 66 © Correct Setup For Scenario 2 SEE TABLE A Figure Left Lane Closed D Multilane Roadway ¥ See footnotes for Figure 3.4.3

Slide 67 © Municipal Scenario 3 Job Task: Asphalt Repair Roads crew is performing asphalt repair. One lane is closed on a two lane two way road near a curve The job is expected to take more than 30 minutes Speed limit 50 km/h Road is high volume

Slide 68 © SEE TABLE A Figure Lane Closure with TCPs D Two Lane Two-way Roadway Correct Setup For Scenario 3

Slide 69 © Municipal Scenario 4 Job Task: Traffic Signal Lamp Replacement A crew is replacing lamps in an overhead signal at an intersection using a bucket truck The job is expected to take more than 30 minutes Speed limit 50 km/h Road is a multilane roadway

Slide 70 © Correct Setup For Scenario 4

Slide 71 © Exercise 2 – Traffic Control Plans Complete a Traffic Control Plan for the following scenario using the blank Traffic Control Plan in Appendix 2 and the blank Scenario on page 4-3 of the Participant Guide

Slide 72 © Job Task: Mow and hand cut grass A crew is mowing and hand cutting grass from the boulevard to the fence line The job is expected to take more than 30 minutes Speed limit 70 km/h Road is a multilane roadway Exercise 2 – Traffic Control Plans

Slide 73 © Traffic Control Plan Bullcrew TruckF.A.B. Cones Type 1.0m intervals Eastbound Westbound TW-61R 80m TW-61R 80m C-32 C-4

Slide 74 © Questions

Slide 75 © Theory Quiz

THE END