Express lanes and tolls: how to use them safely and avoid scams
How express and toll lanes work, how to merge safely and spot fake toll texts
Express lanes and toll roads are now part of daily driving in many regions. California alone has more than 500 miles of express lanes in operation [1]. They can save time, but they come with new rules, new costs and, lately, new scams.
This guide explains how they work and how to use them safely.
How express lanes work
Express lanes are special lanes next to regular highway lanes. Many are called HOT lanes, short for high occupancy toll. Drivers can use them by paying a toll, and carpools often ride free or at a discount.
The price usually changes with traffic. When the regular lanes are jammed, the express lane toll goes up to keep the express lane flowing. Signs before each entrance show the current price [1, 2]. In many systems, the price you see when you enter is the price you pay.
Most express lanes collect tolls electronically. You need a transponder, such as E-ZPass, SunPass or FasTrak, or the system bills the vehicle’s owner by license plate, often with extra fees.
Enter and exit only where allowed
Express lanes are usually separated from regular lanes by double white lines, plastic posts or barriers. You may enter and exit only at marked access points.
Never cross double white lines or posts. It is illegal in most places and dangerous. Drivers in the express lane may be moving much faster than the lane next to it, and they do not expect a car to cut in. If you miss your exit, stay in the express lane to the next exit point.
Watch the speed difference
The main danger in express lanes is the gap in speed between lanes. Express traffic may be moving at highway speed while the regular lanes crawl.
- When entering, signal early and match the express lane speed
- When leaving, signal early and slow down gradually in the express lane before merging into slower traffic
- Watch for drivers in the regular lanes who might cut across illegally
- Leave space ahead. Express lanes often have narrow shoulders and few places to pull off
Carpool rules
If you claim a carpool discount, make sure you meet the rule, such as two or three people in the car. Some systems use switchable transponders that you set to the number of people in the car. Cheating can bring big fines. Children usually count as occupants, but check your local rules.
Toll roads and open road tolling
Most toll roads now use open road tolling. Overhead gantries read your transponder or license plate as you drive at normal speed.
- Do not slow down or stop under a gantry. Sudden braking causes rear end crashes.
- Do not swerve to avoid a toll lane at the last second.
- If you miss a toll, most agencies mail a bill or let you pay online within a set time. Look up the official agency website.
- Rental cars often come with toll programs and daily fees. Ask at the counter.
Toll text scams
Since March 2024, the FBI has received thousands of complaints about fake text messages claiming the recipient owes unpaid tolls [3]. The texts pose as a state toll agency and list a small amount due. They include a link to “pay.” The link leads to a fake site designed to steal card numbers and personal details [3].
How to protect yourself [3, 4]:
- Do not click links in unexpected toll texts
- Look up your toll account on the agency’s official website or app, typed in yourself
- Call the toll agency’s customer service number from its official site
- Report the text, then delete it
- Watch your bank and card statements
Warning: Real toll agencies will not threaten you with immediate legal action by text or ask for payment through a strange link. When in doubt, check your account directly.
Checklist: using express lanes and tolls
Checklist from Safety Behind the Wheel Foundation
- My transponder is mounted correctly and my account is funded
- My license plate and payment card are up to date on my toll account
- I enter and exit express lanes only at marked access points
- I never cross double white lines or posts
- I do not slow down under toll gantries
- I check unexpected toll bills on the official website, not through text links
Frequently asked questions
What happens if I use an express lane without a transponder?
Many systems bill the registered owner by license plate, often with an added fee. Some lanes require a transponder and may issue a violation. Check the rules where you drive.
Can motorcycles use express lanes?
Often, yes, sometimes for free. Rules vary by state and lane.
Are express lanes safer than regular lanes?
They can have smoother traffic, but the speed difference with nearby lanes and narrow shoulders create their own risks. Drive with extra care at access points.
Related articles
Sources and further reading
- 1California Department of Transportation. “Express Lanes.” dot.ca.gov/…/express-lanes
- 2Federal Highway Administration. “Priced Managed Lane Guide.” 2013. ops.fhwa.dot.gov/…/pmlg1_0.htm
- 3WBTV. “FTC, FBI warn of text scam involving unpaid tolls.” February 8, 2025. wbtv.com/…/ftc-fbi-warn-text-scam-invo…
- 4Federal Bureau of Investigation, Internet Crime Complaint Center. “Smishing Scam Regarding Debt for Unpaid Tolls Targets US Citizens.” April 2024. ic3.gov/PSA/2024/PSA240412
This article reflects the safety priorities of highway safety and consumer protection. It is general education, not legal or financial advice. Check your local toll agency for current rules and prices. Reviewed November 2026.
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