traffic requirements for structure rehabilitations...traffic requirements for structure...

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Traffic Management Guidelines for Structure Rehabilitation Projects

February 2009

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Purpose & Background These guidelines were prepared in order to assist the Regional Structural Office in determining Traffic staging requirements for structural rehabilitations during the preliminary design phase of a project. The intent of this document is not to limit or replace the involvement of the Traffic Office during the preliminary or detail design stages of the work project. Rather it is to provide guidance on a starting point for the consideration of options in a structural rehabilitation project. Once the strategy for traffic management to support structural work is determined, consult the Regional Traffic Section.

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Traffic Requirements for Structure Rehabilitations

2-Lane Highways Day Time Flagging Operation

• Minimum 3.5 metre lane width • Minimum 0.5 metre offset (1.0 metre preferred) • Traffic to be controlled by Traffic Control Persons (TCP). • Remote Control Flagman can be used to assist, but not replace the TCP • Posted speed limit should not exceed 60 km/h • A “Designation of Construction Zone” is required to legally reduce the speed

limit • Portable Lane Control Signals not permitted to be used • Portable Temporary Traffic Signals can be used for this operation (a PH-M-125

drawing is not required if this device is used for very short or short duration work as defined in Ontario Traffic Manual Book 7).

• Partial Illumination is required if operations occur during the hours of darkness • Alternate access or closure may be required if there are any entrances, or

driveways that fall within the work zone • Recommend only 1 access point to the work zone • Signing considerations for farming and/or oversize, overweight equipment • Ensure pedestrian access / facilities are provided / maintained • Signing and Lane Closures / Reductions to be as per Ontario Traffic Manual Book

7 • Consult with Regional Traffic, if the work zone is within 500 metres of any

existing traffic signal installation • Consult with Regional Traffic regarding the placement of stop bar and taper

lengths as they will differ from Figure TL-21 (Ontario Traffic Manual Book 7) If Portable Temporary Traffic Signals are going to be used. See Page 14

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RC-FLAGMAN

PORTABLE LANE CONTROL SIGNAL

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2-Lane Highways Work that requires a single lane operation less than 8-months

• Minimum 3.5 metre lane width • Minimum 0.5 metre offset (1.0 metre preferred) • Traffic to be controlled by either Portable Temporary Traffic Control Signals

(PHM-125 drawing required) or Temporary Traffic Control Signals (PHM-125 and electrical design required)

• Portable Lane Control Signals not permitted to be used • A “Designation of Construction Zone” is required to legally reduce the speed

limit. • Partial Illumination is required (Portable illumination on trailers is acceptable) • Traffic Control Signal operation to be Fully Actuated and rests in Red. • Additional traffic signal phases may be required if there are any side roads,

freeway ramps, entrances, or driveways in the immediate vicinity of the structure (up to 50 metres)

• Alternate access or closure may be required if there are any entrances, or driveways that fall within the work zone

• To reduce delay and increase capacity, the parallel portion of the barrier should be minimized. It is recommended that only 1 full panel be placed beyond the expansion joint or approach slab depending on the work being conducted.

• Recommend only 1 access to the work zone • The end treatment should be located as far off centreline as possible thereby

reducing the overall length between the stop bars. • Guide rail to be re-instated prior to the lane being re-opened to traffic • If turned down flared end treatments are being used, they will have to meet clear

zone requirements for the operating speed of the roadway • Signing considerations for farming and/or oversize, overweight equipment • Notification to be made to the MTO Carrier Permit Office of the reduced

geometrics through the site. • Ensure pedestrian access / facilities are provided / maintained and signed as

needed. • Signing and Lane Closures / Reductions to be as per Ontario Traffic Manual Book

7 • Consult with Regional Traffic regarding the placement of stop bar and taper

lengths as they will differ from Figure TL-21 (Ontario Traffic Manual Book 7) If Portable Temporary Traffic Signals are going to be used. See Figure TL-21 on Page 14

• Consult with Regional Traffic, if the work zone is within 500 metres of any existing traffic signal installation

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Temporary Traffic Signal

Portable Temporary Traffic Signal

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2-Lane Highways Work that requires a single lane operation greater than 8-months

• Minimum 3.5 metre lane width • Minimum 0.5 metre offset (1.0 metre preferred) • Temporary Traffic Control Signals (PHM-125 and electrical design required) • Portable Lane Control Signals not permitted to be used • A “Designation of Construction Zone” is required to legally reduce the speed

limit. • Portable Temporary Traffic Signals not recommended (see Portable Temporary

Traffic Signal policy) • Partial Illumination is required • Traffic Control Signal operation to be Fully Actuated and rests in Red. • Additional traffic signal phases may be required if there are any side roads,






zone requirements for the operating speed of the roadway • Signing considerations for farming and/or oversize, overweight equipment • Notification to be made to the MTO Carrier Permit Office for oversized moves of

the reduced geometrics through the site. • Ensure pedestrian access / facilities are provided / maintained and signed as



lengths as they will differ from Figure TL-21 (Ontario Traffic Manual Book 7) If Portable Temporary Traffic Signals are going to be used. See Figure TL-21 on Page 14


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Grade Separations Yield To Oncoming Traffic

• Rarely used, should only be considered where traffic volumes are very low. • Not to be used on horizontal curves. • Used when traffic volumes do not meet the criteria for traffic control signals

(OTM Book 5 Regulatory Signs Page 140 - Table 4 Maximum One-way Volumes)

• Sight visibility must be available for approaching motorists to see the opposing roadway beyond the single lane section for a distance at least equal to the length of the single lane section or the stopping distance of an opposing vehicle whichever is greater

• Recommend advisory 60 km/h speed limit signs be installed, if posted speed limit is Regulatory 80 km/h

• A “Designation of Construction Zone” is required to legally reduce the speed limit.

• Signing must be provided to warn motorists in both directions of the single lane operation ahead

• Minimum 3.5 metre lane width • Minimum 0.5 metre offset (1.0 metre preferred) • Alternate access or closure may be required if there are any entrances, or

driveways that fall within the work zone • To reduce delay and increase capacity, the parallel portion of the barrier should be

minimized. It is recommended that only 1 full panel be placed beyond the expansion joint or approach slab depending on the work being conducted.

• Recommend only 1 access to the work zone • Guide rail to be re-instated prior to the lane being re-opened to traffic • If turned down flared end treatments are being used, they will have to meet clear

zone requirements for the operating speed of the roadway • Signing considerations for farming and/or oversize, overweight equipment • Notification to be made to the MTO Carrier Permit Office for oversized moves of

the reduced geometrics through the site. • Ensure pedestrian access / facilities are provided / maintained • Signing and Lane Closures / Reductions to be as per Ontario Traffic Manual Book


existing traffic signal installation

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Interchanges – Work on Arterial Roads Day Time Flagging Operation

• On crossing roads only, no flagging operations permitted on freeways • Minimum 3.5 metre lane width • Minimum 0.5 metre offset (1.0 metre preferred) • Traffic to be controlled by Traffic Control Persons (TCP). • RC Flagman can be used to assist not replace the TCP • Portable Temporary Traffic Signals can be used for this operation (a PH-M-125

drawing is not required if this device is used for very short or short duration work as defined in Ontario Traffic Manual Book 7.

• A “Designation of Construction Zone” is required to legally reduce the speed limit

• Posted speed limit should not exceed 60 km/h • Partial Illumination is required if operations occur during the hours of darkness • Alternate access or closure may be required if there are any entrances, or

driveways that fall within the work zone • Recommend only 1 access to the work zone • Signing considerations for farming and/or oversize, overweight equipment • Ensure pedestrian access / facilities are provided / maintained and signed as



lengths as they will differ from Figure TL-21 (Ontario Traffic Manual Book 7) if Portable Temporary Traffic Signals are going to be used. See Figure TL-21 on Page 14


• Notify road authority of the work, if other than MTO, for the benefit of emergency services and transit operators

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Interchanges – Work on Arterial Roads Work that requires a single lane operation less than 8-months

• Minimum 3.5 metre lane width • Minimum 0.5 metre offset (1.0 metre preferred) • Traffic to be controlled by either Portable Temporary Traffic Signals (PHM-125

drawing required) or Temporary Traffic Control Signals (PHM-125 drawing and electrical design required)

• Portable Lane Control Signals not permitted to be used. • A “Designation of Construction Zone” is required to legally reduce the speed

limit. • Partial Illumination is required (Portable illumination on trailers is acceptable) • Traffic Control Signal operation to be Fully Actuated and rests in Red. • Additional traffic signal phases may be required if there are any side roads,



• To reduce delay and increase capacity, the parallel portion of the barrier should be minimized. It is recommended that 1 full panel be placed beyond the expansion joint or approach slab depending on the work being conducted.



zone requirements for the operating speed of the roadway • Signing considerations for farming and/or oversize, overweight equipment • Ensure pedestrian access / facilities are provided / maintained and signed as

needed. • Notification to be made to the MTO Carrier Permit Office for oversized moves of

the reduced geometrics through the site. • Signing and Lane Closures / Reductions to be as per Ontario Traffic Manual Book


existing traffic signal installation • Consult with Regional Traffic, regarding the placement of stop bar and taper

lengths as they will differ from Figure TL-21 (Ontario Traffic Manual Book 7) See Figure TL-21 on Page 14

• Notify road authority of the work, if other than MTO, for the benefit of emergency services and transit operators

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Interchanges – Work on Arterial Roads Work that requires a single lane operation greater than 8-months

• Minimum 3.5 metre lane width • Minimum 0.5 metre offset (1.0 metre preferred) • Temporary Traffic Control Signals (PHM-125 and electrical design required) • Portable Lane Control Signals not permitted to be used • A “Designation of Construction Zone” is required to legally reduce the speed

limit. • Portable Temporary Traffic Signals not recommended (see Portable Temporary

Traffic Signal policy) • Partial Illumination is required • Traffic Control Signal operation to be Fully Actuated and rests in Red. • Additional traffic signal phases may be required if there are any side roads,






zone requirements for the operating speed of the roadway • Signing considerations for farming and/or oversize, overweight equipment • Ensure pedestrian access / facilities are provided / maintained and signed as

needed. • Notification to be made to the MTO Carrier Permit Office for oversized moves of



existing traffic signal installation • Consult with Regional Traffic regarding the placement of stop bar and taper

lengths as they will differ from Figure TL-21 (Ontario Traffic Manual Book 7) See Figure TL-21 on Page 14

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Freeways Operation less than 2-months

• A “Queue Analysis” is required to determine the number of lanes necessary based on traffic volumes, commercial percentages, terrain, lane widths, and offset. Regional Traffic will provide “Queue Analysis” if in-house design

• Minimum 3.5 metre lane widths • A “Designation of Construction Zone” is required to legally reduce the speed

limit • Temporary Concrete Barrier required (Planning & Design involvement required) • Offset to barrier / parapet wall 0.5 metres for a single lane operation, 0.0 – 1.0

metre for a multi-lane operation. • Recommend only 1 access to the work zone • Guide rail to be re-instated prior to the lane being re-opened to traffic • Turned down or flared ends are not to be used on freeways with a posted speed of

greater than 90km/h. • Signing considerations for oversize, overweight equipment • Notification to be made to the MTO Carrier Permit Office for oversized moves of


7 Operation greater than 2-months

• A “Queue Analysis” is required to determine the number of lanes necessary based on traffic volumes, commercial percentages, terrain, lane widths, and offset. Regional Traffic will provide “Queue Analysis” if in-house design

• Minimum 3.5 metre lane widths • A “Designation of Construction Zone” is required to legally reduce the speed

limit. • Temporary Concrete Barrier required (Planning & Design involvement required) • Offset to barrier / parapet wall 0.5 metres for a single lane operation, 0.0 – 1.0

metre for a multi-lane operation • Recommend only 1 access to the work zone • Guide rail to be re-instated prior to the lane being re-opened to traffic • Turned down or flared ends are not to be used on freeways with a posted speed of

greater than 90km/h. • Signing considerations for oversize, overweight equipment • Notification to be made to the MTO Carrier Permit Office for oversized moves of


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