104.18 Traffic Manager (Tm)
2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 100 PRELIMINARY SECTION 104.18 — TRAFFIC MANAGER (TM)
104.18.01 Description
Provide a Traffic Manager (TM).
104.18.02 Materials
Not applicable.
104.18.03 Construction
Submit the TM’s name for approval at least 10 days prior to commencing any work on the project. Provide proof that the TM has completed an Administration approved Temporary Traffic Control training course within the last four years. A change in the appointment of any TM throughout the duration of the Contract will require a written submittal for approval. Any failure of the TM to perform the required duties will be grounds for replacement. The TM shall be available at all times and be on site within 1/2 hour during periods of active work in the work zone. The TM shall do the following:
a.Implement the Traffic Control Plan (TCP), maintain an up-to-date TCP, and provide a copy to the Engineer following any changes.
b.Closely coordinate the operations with the Engineer and supervise the maintenance of traffic on the project, including those involving subcontractors.
c.Make on-site inspections of the area affected by the work on a regular basis including Saturdays, Sundays, and holidays, and be available for consultation at all times. When the TCP is in place, make daily inspections during hours of operations and at least one night inspection per week. Perform additional inspections as directed.
d.During holiday periods, in addition to the monitoring of the maintenance of traffic, conduct a surveillance of any area affected by the Contract work.
e.Maintain a daily log of the inspections and include the date, time, hours worked, condition of maintenance of traffic, and any corrective action taken. Furnish a copy of the daily log to the Engineer by the following day.
104.18 Traffic Manager (Tm)
f.Provide coordination between adjacent work zone operations to ensure that inappropriate or conflicting messages or devices are not displayed to traffic.
g.Immediately, notify the Engineer of any accident or incident within the area affected by the Contract.
h.Make inspections during and immediately after adverse weather conditions to ensure that the traffic control devices are clean, undamaged, and in the correct position.
104.18.04 Measurement and Payment
The Traffic Manager will not be measured but the cost will be incidental to the Contract price for Maintenance of Traffic. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
104.19 Portable Variable Message Signs (Pvms)
raising and lowering of the sign panel, during sustained wind speeds of 85 mph. The display windows shall be made of impact-resistant clear Lexan or as approved. Sign Panel. Not to exceed 144 in. length, 90 in. height, 12 in. depth. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 100 PRELIMINARY SECTION 104.19 — PORTABLE VARIABLE MESSAGE SIGNS (PVMS)
104.19.01 Description
Furnish, install and relocate portable, self-contained, trailer mounted variable message signs.
104.19.02 Materials
PVMS QPL All materials shall be like new, corrosion resistant, and unaffected by water spray, salt, oil, gasoline, and all other contaminants in the quantities normally found along the edge of the traveled roadway. Construction, materials, and operation shall meet NFPA, UL, and NEC. Ensure that sign messages are visible and legible for a distance of 900 ft from any point along the traveled approach roadway at all times. The PVMS shall be equipped with a sighting device to provide alignment for maximum visibility.
104.19.03 Construction
104.19.03 01 Equipment.
Trailer. In accordance with Maryland Motor Vehicle Law. Structural Support. The structural support framework shall allow the system to be assembled into a unit and be mounted on the trailer and shall provide the support mechanism between the sign panel assembly, the power supply, and the controller. The framework shall provide sufficient support to prevent damage to any unit component when the sign is in down and locked position during normal highway travel. The deployed structure shall supply adequate support to allow complete sign operation, including
Source: Maryland Standard Specifications for Construction and Materials, 2025 Edition. Pages 189–190 of 1,113.