Art. 702.01 Nighttime Work Zone Lighting SECTION 702. NIGHTTIME WORK ZONE LIGHTING
702.01 Description. This work shall consist of furnishing, installing,
maintaining, moving, and removing lighting for nighttime work zones. Nighttime shall be defined as occurring shortly before sunset until after sunrise.
702.02 Materials. The lighting shall consist of mobile and/or stationary
lighting systems as required herein for the specific type of construction. Mobile lighting systems shall consist of luminaires attached to construction equipment or moveable carts. Stationary lighting systems shall consist of roadway luminaires mounted on temporary poles or trailer mounted light towers at fixed locations. Some lighting systems, such as balloon lights, may be adapted to both mobile and stationary applications.
702.03 Equipment. The Contractor shall furnish an illuminance meter for use
by the Engineer. The meter shall have a digital display calibrated to NIST standards, shall be cosine and color corrected, and shall have an accuracy of ± five percent. The sensor shall have a level indicator to ensure measurements are taken in a horizontal plane. CONSTRUCTION REQUIREMENTS
702.04 General. At the preconstruction conference, the Contractor shall
submit the type(s) of lighting system to be used and the locations of all devices. Before nighttime construction may begin, the lighting system shall be demonstrated as being operational.
702.05 Nighttime Flagging. The requirements for nighttime flagging shall be
according to Article 701.13 and the glare control requirements contained herein.
702.06 Lighting System Design. The lighting system shall be designed to
meet the following.
a.Lighting Levels. The lighting system shall provide a minimum of 5 footcandles (54 lux) throughout the work area. For mobile operations, the work area shall be defined as 25 ft (7.6 m) in front of and behind moving equipment. For stationary operations, the work area shall be defined as the entire area where work is being performed. Lighting levels will be measured with an illuminance meter. Readings will be taken in a horizontal plane 3 ft (1 m) above the pavement or ground surface.
b.Glare Control. The lighting system shall be designed and operated so as to avoid glare that interferes with traffic, workers, or inspection personnel. Lighting systems with flood, spot, or stadium type luminaires shall be aimed downward at the work and rotated outward no greater than 30 degrees from nadir (straight down). Balloon lights shall be positioned at least 12 ft (3.6 m) above the roadway. Nighttime Work Zone Lighting Art. 702.08 As a large component of glare, the headlights of construction vehicles and equipment shall not be operated within the work zone except as allowed for specific construction operations. Headlights shall never be used when facing oncoming traffic.
c.Light Trespass. The lighting system shall be designed to effectively light the work area without spilling over to adjoining property. When, in the opinion of the Engineer, the lighting is disturbing adjoining property, the Contractor shall modify the lighting arrangement or add hardware to shield the light trespass.
702.07 Construction Operations. The lighting design required above shall
be provided at any location where construction equipment is operating or workers are present on foot. When multiple operations are being carried out simultaneously, lighting shall be provided at each separate work area. The lighting requirements for specific construction operations shall be as follows.
a.Installation or Removal of Work Zone Traffic Control. The required lighting level shall be provided at each truck and piece of equipment used during the installation or removal of work zone traffic control. Headlights may be operated in the work zone.
b.Milling and Paving. The required lighting level shall be provided by mounting a minimum of one balloon light to each piece of mobile construction equipment used in the work zone. This would include milling machines, mechanical sweepers, material transfer devices, spreading and finishing machines, and rollers; but not include trucks used to transport materials and personnel or other vehicles that are continuously moving in and out of the work zone. The headlights of construction equipment shall not be operated within the work zone.
c.Patching. The required lighting level shall be provided at each patching location where work is being performed.
d.Pavement Marking and Raised Reflective Pavement Marker Removal/Installation. The striping truck and the attenuator/arrow board trucks may by operated by headlights alone; however, additional lighting may be necessary for the operator of the striping truck to perform the work. For raised reflective pavement marker removal and installation and other pavement marking operations where workers are on foot, the required lighting level shall be provided at each truck and piece of equipment.
e.Layout, Testing, and Inspection. The required lighting level shall be provided for each active area of construction layout, material testing, and inspection. The work area shall be defined as 15 ft (4.5 m) in front and back of the individual(s) performing the tasks.
702.08 Basis of Payment. This work will be paid for at the contract lump sum
price for NIGHTTIME WORK ZONE LIGHTING. Art. 703.01 Short Term and Temporary Pavement Markings SECTION 703. SHORT TERM AND TEMPORARY PAVEMENT MARKINGS
703.01 Description. This work shall consist of furnishing, installing,
maintaining, and removing short term and temporary pavement markings.
703.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Paint Pavement Markings .................................................................. 1095.02
b.Epoxy Pavement Markings ................................................................ 1095.04
c.Pavement Marking Tapes .................................................................. 1095.06
d.Polyurea Pavement Markings ............................................................ 1095.08
e.Modified Urethane Pavement Markings ............................................. 1095.09 CONSTRUCTION REQUIREMENTS
703.03 General. Short term pavement markings shall consist of abbreviated
patterns for edge, lane, and center line markings. Within a specified time limit, short term pavement markings shall either be resurfaced or removed and replaced with the full pavement marking patterns indicated on the plans with either a temporary material paid for as temporary pavement marking or with permanent material. Within the conditions as specified, the Contractor may be required to place all or a part of the quantities shown on the plans for short term pavement markings and temporary pavement markings. Before applying the pavement marking material, the pavement shall be cleaned according to the manufacturer. Paint pavement markings shall be installed according to Section 780, except hand-operated stripers may be used for all applications of short term and temporary pavement markings. Epoxy, polyurea, and modified urethane pavement markings shall be installed according to Section 780. Pavement marking tapes shall be applied to the prepared surface according to the manufacturer's recommendations or by a method approved by the Engineer.
703.04 Short Term Pavement Markings. Before the lane is opened to traffic,
appropriate short term pavement markings shall be installed between all lanes open to traffic. Center line or lane line markings shall consist of an abbreviated pattern of single stripes 4 ft (1.2 m) in length and a minimum of 4 in. (100 mm) wide at a maximum spacing of 40 ft (12 m) between stripes. Center lines on two-lane highways shall be yellow and lane lines separating two or more lanes of traffic moving in the same direction shall be white. Edge line markings shall be applied on multilane divided highways and other highways with a paved shoulder greater than 4 ft (1.2 m) wide. Edge line markings shall consist of stripes 4 ft (1.2 m) in length and a minimum of 4 in. (100 mm) wide at intervals of 50 ft (15 m) on ramps and 200 ft (60 m) on mainline installed at approximately a 45 degree diagonal pointing in the direction of traffic. Short term pavement markings on the final wearing surface shall be transversely offset from the permanent pavement marking location as directed by the Engineer. Short term pavement markings shall be removed within five calendar days after permanent pavement markings are installed.
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 639–641 of 1,217. View official source ↗