Highway work zone vehicle insurance

Attenuator Truck Insurance

Attenuator trucks, TMA trucks, crash cushion trucks, and shadow vehicles are not ordinary commercial trucks. They are used in work zones where traffic, construction crews, lane closures, contract requirements, and expensive vehicle-mounted safety equipment all collide.

Kelly Insurance Group helps highway contractors, traffic control contractors, roadway safety companies, and specialty fleet operators explain the actual operation before the account is sent to underwriting.

Interactive TMA Truck Map Tap a point
TMA TRUCK ATTENUATOR CRASH CUSHION WORK ZONE LANE CLOSURES DRIVERS CREWS / WC CONTRACTS COIs / AI Click a point to see what underwriters may ask about.
Selected exposure

Commercial Auto / TMA Vehicle Use

Underwriters will want to understand the vehicle schedule, radius, states of operation, drivers, contracts, garaging, work zone use, and whether the unit is owned, leased, rented, or subcontracted.

Why this coverage deserves attention

A TMA truck is a work zone safety vehicle, not just a truck.

A truck mounted attenuator may be used as a shadow vehicle, lane closure vehicle, traffic control support unit, or roadway safety vehicle. That use changes the insurance conversation.

The insurance review should separate the truck, the attenuator equipment, the work zone operation, the driver exposure, the crew exposure, the contract requirements, and the certificate wording.

A clean submission should explain where the trucks operate, what type of road work is supported, whether the contractor performs traffic control, whether the unit is rented to others, and whether the company is working for municipalities, utilities, general contractors, highway contractors, or public agencies.

Coverage structure

The program should match the work zone operation.

Vehicle liability

Commercial Auto Liability

Should be reviewed around the vehicle schedule, use, radius, drivers, contracts, and roadway work zone exposure.

Vehicle value

Physical Damage

Truck values, attached equipment, crash cushion units, arrow boards, and specialized modifications should be described clearly.

Jobsite liability

General Liability

May be relevant for traffic control operations, non-auto premises or operations exposures, subcontractors, and contract requirements.

Higher limits

Umbrella / Excess Liability

Highway contracts, municipal work, utility projects, and public agency work may require higher liability limits.

Employees

Workers Compensation

Should be reviewed based on drivers, flaggers, traffic control crews, setup crews, and applicable state requirements.

Equipment

Inland Marine

May be needed for portable message boards, cones, arrow boards, signs, tools, temporary traffic control equipment, and other mobile property.

Borrowed units

Hired & Non-Owned Auto

Important when vehicles are rented, borrowed, subcontracted, or employees use vehicles connected to the operation.

Contracts

Certificates of Insurance

Owners, GCs, municipalities, utilities, and project managers may request additional insured and other certificate wording.

Claims review

Loss History

Prior losses, windshield claims, rear-end impacts, vehicle damage, and work zone incidents should be disclosed accurately.

Do not describe this as a normal trucking account.

Attenuator truck operations should be submitted with the work zone context. The underwriter needs to know how the truck is used, where it operates, what equipment is attached, and what contract requirements apply.

Start the Review

Operations we want disclosed

Different roadway operations create different insurance questions.

TMA / Shadow Vehicles

Truck mounted attenuator units in live traffic

Review vehicle schedule, equipment values, drivers, road type, states of operation, contracts, and whether the unit is used by your employees or rented to others.

Traffic Control

Lane closures, cones, signs, boards, and work zone setup

Traffic control operations may create general liability, auto, workers compensation, inland marine, and certificate requirements.

Highway Contractors

Roadway construction and contractor support

Contractors should disclose whether TMA units are part of paving, striping, utility work, bridge work, emergency repair, or construction support.

Municipal / Public Work

Government, utility, and public agency contracts

Public work may involve specific insurance requirements, additional insured language, waiver requests, higher limits, and certificate deadlines.

Rental / Borrowed Units

Owned units, rented units, and subcontracted equipment

Disclose who owns the truck, who operates it, who maintains it, who insures it, and what the rental or subcontract agreement requires.

Why Kelly Insurance Group

TMA truck accounts need more than a fast certificate.

This is a fleet-heavy, contract-heavy, documentation-sensitive account type. The agent matters. The details matter. The submission matters.

Our team

We are proud of our agents because unusual contractor and fleet risks need people who understand underwriting detail, documentation, communication, and urgency.

Meet the Team

Our history

Kelly Insurance Group has a deep Pittsburgh insurance history and continues to build specialty insurance workflows around real client needs.

Read Our History

Client portal access for most customers

Once you become a customer, most customers are given access to our custom client portal, where certificates of insurance can be generated at any time. That matters when a municipality, utility, GC, project manager, or roadway contractor needs documentation quickly.

Client Portal

Questions operators ask

Attenuator truck insurance FAQ.

No. Attenuator trucks and shadow vehicles should be reviewed based on their work zone use, crash cushion equipment, traffic exposure, contract requirements, and whether they are operating in active roadway environments.
Underwriters usually need vehicle schedules, driver information, states of operation, contracts, work zone activity, whether the trucks are owned or rented, equipment values, loss history, safety procedures, and certificate requirements.
Commercial auto liability, physical damage, general liability, workers compensation, inland marine or equipment coverage, umbrella or excess liability, hired and non-owned auto, and certificate requirements should be reviewed.
Yes. TMA truck and roadway contractors often need certificates for municipalities, utilities, GCs, project owners, and public work contracts. Most KIG customers receive access to a custom client portal for certificate generation.

Start the conversation

Tell us how your attenuator trucks are used.

Use the form to start the conversation. The more specific you are about vehicles, drivers, garaging, states of operation, contracts, roadway work, and equipment values, the better the submission can be prepared.

  • TMA trucks
  • Crash cushion trucks
  • Shadow vehicles
  • Traffic control contractors
  • Lane closure work
  • Municipal or public work
  • Highway contractor support
  • Certificate-heavy contracts
Coverage availability, terms, conditions, exclusions, eligibility, limits, and pricing vary by carrier, state, class of business, claims history, vehicle use, driver history, radius, contracts, garaging, equipment values, and underwriting review. This page is general insurance information only and is not a quote, binder, legal opinion, policy interpretation, or guarantee of coverage. Policy forms and endorsements control.