Common use of TRAFFIC CONTROL PATTERNS Clause in Contracts

TRAFFIC CONTROL PATTERNS. Traffic control patterns shall be used when a work operation requires that all or part of any vehicle or work area protrudes onto any part of a travel lane or shoulder. For each situation, the installation of traffic control devices shall be based on the following: Speed and volume of traffic Duration of operation Exposure to hazards Traffic control patterns shall be uniform, neat and orderly so as to command respect from the motorist. In the case of a horizontal or vertical sight restriction in advance of the work area, the traffic control pattern shall be extended to provide adequate sight distance for approaching traffic. If a lane reduction taper is required to shift traffic, the entire length of the taper should be installed on a tangent section of roadway so that the entire taper area can be seen by the motorist. Any existing signs that are in conflict with the traffic control patterns shall be removed, covered, or turned so that they are not readable by oncoming traffic. When installing a traffic control pattern, a Buffer Area should be provided and this area shall be free of equipment, workers, materials and parked vehicles. Typical traffic control plans 19 through 25 may be used for moving operations such as line striping, pot hole patching, mowing, or sweeping when it is necessary for equipment to occupy a travel lane. Traffic control patterns will not be required when vehicles are on an emergency patrol type activity or when a short duration stop is made and the equipment can be contained within the shoulder. Flashing lights and appropriate trafficperson shall be used when required. Although each situation must be dealt with individually, conformity with the typical traffic control plans contained herein is required. In a situation not adequately covered by the typical traffic control plans, the Contractor must contact the Engineer for assistance prior to setting up a traffic control pattern. Rev. Date 5/18/2018 PLACEMENT OF SIGNS Signs must be placed in such a position to allow motorists the opportunity to reduce their speed prior to the work area. Signs shall be installed on the same side of the roadway as the work area. On multi-lane divided highways, advance warning signs shall be installed on both sides of the highway. On directional roadways (on-ramps, off-ramps, one-way roads), where the sight distance to signs is restricted, these signs should be installed on both sides of the roadway.

TRAFFIC CONTROL PATTERNS. Traffic control patterns shall be used when a work operation requires that all or part of any vehicle or work area protrudes onto any part of a travel lane or shouldershoulder or is within the clear zone. For each situation, the installation of traffic control devices shall be based on the following: • Speed and volume of traffic traffic. • Duration of operation operation. • Exposure to hazards hazards. Traffic control patterns shall be uniform, neat neat, and orderly so as in order to command respect from the motorist. In the case of a horizontal or vertical sight restriction in advance of the work area, the traffic control pattern shall Lane reduction tapers should be extended to provide adequate sight distance for approaching traffic. If a lane reduction taper is required to shift traffic, placed so that the entire length of the taper should be is installed on a tangent section of roadway so that and the entire taper area can be seen by the motorist. Any All existing conflicting signs that are in conflict with the traffic control patterns shall be removed, coveredcovered with an opaque material, or turned so that they are not readable by legible to oncoming traffic. When installing traffic prior to implementing a traffic control pattern, a Buffer Area . The existing signs shall be uncovered or reinstalled once the pattern is removed. A buffer area should be provided during installation of a traffic control pattern and this maintained for the duration of the work. The buffer area shall be free of any equipment, workers, materials materials, and parked vehicles. Typical traffic control plans Construction Traffic Control Plans 19 through 25 may should be used for moving operations such as line striping, pot hole rumble strips, pothole patching, mowing, or sweeping when it is necessary for equipment to occupy a travel lane. Traffic control patterns will are not be required when for vehicles are on an emergency patrol type activity or when for a short duration stop is made and of up to one hour, as long as the equipment can be is contained within the shoulder. Flashing lights lights, arrow boards, truck-mounted or trailer-mounted impact attenuators, and appropriate trafficperson Trafficperson(s) shall be used when required. Although each situation must be dealt with individually, conformity with the typical traffic control plans contained herein is required. In a situation not adequately covered by the typical traffic control plansConstruction Traffic Control Plans, the Contractor must shall contact the Engineer for assistance prior to setting up a traffic control pattern. Rev. Date 5/18/2018 PLACEMENT OF SIGNS Signs must be placed in such a position to allow motorists the opportunity to reduce their speed prior to the work area. Signs shall be installed on the same side of the roadway as the work area. On multi-lane divided highways, advance warning signs shall be installed on both sides of the highway. On directional roadways (on-ramps, off-ramps, one-way roads), where the sight distance to signs is restricted, these signs should be installed on both sides of the roadway.

TRAFFIC CONTROL PATTERNS. Traffic control patterns shall be used when a work operation requires that all or part of any vehicle or work area protrudes onto any part of a travel lane or shoulder. For each situation, the installation of traffic control devices shall be based on the following: Speed speed and volume of traffic Duration traffic, duration of operation Exposure operation, and exposure to hazards hazards. Traffic control patterns shall be uniform, neat and orderly so as to command respect from the motorist. In the case of a horizontal or vertical sight restriction in advance of the work area, the traffic control pattern shall be extended to provide adequate sight distance for approaching traffic. If a lane reduction taper is required to shift traffic, the entire length of the taper should be installed on a tangent section of roadway so that the entire taper area can be seen by the motorist. Any existing signs that are in conflict with the traffic control patterns shall be removed, covered, or turned so that they are not readable by oncoming traffic. When installing a traffic control pattern, a Buffer Area should be provided and this area shall be free of equipment, workers, materials and parked vehicles. Typical traffic control plans 19 through 25 may be used for moving operations such as line striping, pot hole patching, mowing, or sweeping when it is necessary for equipment to occupy a travel lane. Traffic control patterns will not be required when vehicles are on an emergency patrol type activity or when a short duration stop is made and the equipment can be contained within the shoulder. Flashing lights and appropriate trafficperson traffic person shall be used when required. Although each situation must be dealt with individually, conformity with the typical traffic control plans contained herein is required. In a situation not adequately covered by the typical traffic control plans, the Contractor must contact the Engineer for assistance prior to setting up a traffic control pattern. Rev. Date 5/18/2018 PLACEMENT OF SIGNS SIGNS: Signs must be placed in such a position to allow motorists the opportunity to reduce their speed prior to the work area. Signs shall be installed on the same side of the roadway as the work area. On multi-lane divided highways, advance warning signs shall may be installed on both sides of the highway. On directional roadways (on-ramps, off-ramps, one-way roads), where the sight distance to signs is restricted, these signs should be installed on both sides of the roadway.. Allowable Adjustment of Signs and Devices Shown on the Traffic Control Plans The traffic control plans contained herein show the location and spacing of signs and devices under ideal conditions. Signs and devices should be installed as shown on these plans whenever possible. The proper application of the traffic control plans and installation of traffic control devices depends on actual field conditions. Adjustments to the traffic control plans shall be made only at the direction of the Engineer to improve the visibility of the signs and devices and to better control traffic operations. Adjustments to the traffic control plans shall be based on safety of work forces and motorists, abutting property requirements, driveways, side roads, and the vertical and horizontal curvature of the roadway. The Engineer may require that the traffic control pattern be located significantly in advance of the work area to provide better sight line to the signing and safer traffic operations through the work zone. Table I indicates the minimum taper length required for a lane closure based on the posted speed limit of the roadway. These taper lengths shall only be used when the recommended taper lengths shown on the traffic control plans cannot be achieved. TABLE I – MINIMUM TAPER LENGTHS POSTED SPEED LIMIT MILES PER HOUR MINIMUM TAPER LENGTH IN FEET FOR A SINGLE LANE CLOSURE 30 OR LESS 35 40 45 50 55 65 180 250 320 540 600 660 780 INSTALLING AND REMOVING TRAFFIC CONTROL PATTERNS

TRAFFIC CONTROL PATTERNS. Traffic control patterns shall be used when a work operation requires that all or part of any vehicle or work area protrudes onto any part of a travel lane or shoulder. For each situation, the installation of traffic control devices shall be based on the following: Speed and volume of traffic Duration of operation Exposure to hazards Traffic control patterns shall be uniform, neat and orderly so as to command respect from the motorist. In the case of a horizontal or vertical sight restriction in advance of the work area, the traffic control pattern shall be extended to provide adequate sight distance for approaching traffic. If a lane reduction taper is required to shift traffic, the entire length of the taper should be installed on a tangent section of roadway so that the entire taper area can be seen by the motorist. Any existing signs that are in conflict with the traffic control patterns shall be removed, covered, or turned so that they are not readable by oncoming traffic. When installing a traffic control pattern, a Buffer Area should be provided and this area shall be free of equipment, workers, materials and parked vehicles. Typical traffic control plans 19 through 25 may be used for moving operations such as line striping, pot hole patching, mowing, or sweeping when it is necessary for equipment to occupy a travel lane. Traffic control patterns will not be required when vehicles are on an emergency patrol type activity or when a short duration stop is made and the equipment can be contained within the shoulder. Flashing lights and appropriate trafficperson shall be used when required. Although each situation must be dealt with individually, conformity with the typical traffic control plans contained herein is required. In a situation not adequately covered by the typical traffic control plans, the Contractor must contact the Engineer for assistance prior to setting up a traffic control pattern. Rev. Date 5/18/2018 PLACEMENT OF SIGNS Signs must be placed in such a position to allow motorists the opportunity to reduce their speed prior to the work area. Signs shall be installed on the same side of the roadway as the work area. On multi-lane divided highways, advance warning signs shall be installed on both sides of the highway. On directional roadways (on-ramps, off-ramps, one-way roads), where the sight distance to signs is restricted, these signs should be installed on both sides of the roadway.

TRAFFIC CONTROL PATTERNS. Traffic control patterns shall be used when a work operation requires that all or part of any vehicle or work area protrudes onto any part of a travel lane or shoulder. For each situation, the installation of traffic control devices shall be based on the following: Speed and volume of traffic Duration of operation Exposure to hazards Traffic control patterns shall be uniform, neat and orderly so as to command respect from the motorist. In the case of a horizontal or vertical sight restriction in advance of the work area, the traffic control pattern shall be extended to provide adequate sight distance for approaching traffic. If a lane reduction taper is required to shift traffic, the entire length of the taper should be installed on a tangent section of roadway so that the entire taper area can be seen by the motorist. Any existing signs that are in conflict with the traffic control patterns shall be removed, covered, or turned so that they are not readable by oncoming traffic. When installing a traffic control pattern, a Buffer Area should be provided and this area shall be free of equipment, workers, materials and parked vehicles. Typical traffic control plans 19 through 25 may be used for moving operations such as line striping, pot hole patching, mowing, or sweeping when it is necessary for equipment to occupy a travel lane. Traffic control patterns will not be required when vehicles are on an emergency patrol type activity or when a short duration stop is made and the equipment can be contained within the shoulder. Flashing lights and appropriate trafficperson trafficpersons shall be used when required. Although each situation must be dealt with individually, conformity with the typical traffic control plans contained herein is required. In a situation not adequately covered by the typical traffic control plans, the Contractor must contact the Engineer for assistance prior to setting up a traffic control pattern. Rev. Date 5/18/2018 PLACEMENT OF SIGNS Signs must be placed in such a position to allow motorists the opportunity to reduce their speed prior to the work area. Signs shall be installed on the same side of the roadway as the work area. On multi-lane divided highways, advance warning signs shall be installed on both sides of the highway. On directional roadways (on-ramps, off-ramps, one-way roads), where the sight distance to signs is restricted, these signs should be installed on both sides of the roadway.