Both Drivers Say They Had the Green: How NC Resolves Disputed Intersection Fault (2026)

The Bottom Line

When two drivers each claim the green at a signalized intersection and there are no witnesses, NC's contributory negligence rule often means neither driver can recover from the other's liability carrier — both claims are denied. Your own collision coverage becomes the practical fallback. The only way to break the deadlock is objective evidence gathered within the first 24 to 72 hours: traffic signal timing logs, city or NCDOT camera footage, 911 audio, or the other driver's Event Data Recorder data.

What Actually Happens When Both Drivers Claim Green

After a disputed intersection accident, each driver gives the responding officer a statement claiming they had the green. The officer notes the dispute, marks the crash report "disputed," and lists no contributing factors for either driver.

From that point, both claims go to both insurers. Each adjuster reviews the same police report, interviews both drivers, and reaches the same conclusion: fault cannot be determined. They issue a mutual-fault determination.

Under NC law, a mutual-fault finding is functionally the same as a finding that you were at fault. Because NC uses pure contributory negligence — one of only four states plus DC that still do — any amount of fault attributed to you bars your recovery from the other driver's insurer entirely.

The practical result: both liability claims are denied, and each driver is left holding the repair bill and medical costs unless they carry their own collision coverage.

Why "We Both Had Green" Is the Insurer's Preferred Outcome in NC

Adjusters in NC know the contributory negligence rule works in their favor. If the at-fault driver's insurer can raise any doubt about whether you were also negligent — even slightly exceeding the speed limit on approach — your claim disappears.

A disputed green-light outcome costs the at-fault driver's insurer nothing. They simply point to the lack of objective evidence, note that your account contradicts their insured's account, and issue a denial.

This is not accusation — it is how the system works. Understanding it changes how urgently you need to gather evidence.

The Same-Day Evidence Window

Most physical evidence from a signalized intersection accident is gone within 24 to 72 hours. Acting the same day — or within the first 48 hours — is not optional.

Traffic camera footage: 24 to 72 hours. City traffic management center cameras and NCDOT cameras overwrite footage on a rolling basis. A preservation letter sent three days later may arrive after the footage is already deleted. Send the letter the same day, or have someone do it while you are still at the hospital.

Event Data Recorder data: risk within 72 hours. The EDR in the other driver's vehicle recorded their speed and braking in the 5 seconds before impact. This data can be overwritten if the vehicle is driven again before the recording is preserved, particularly after a hard braking or crash event. An attorney can send a spoliation preservation letter to the other driver demanding the vehicle not be repaired or scrapped.

Traffic signal timing logs: 30 to 90 days. This is the most commonly overlooked evidence source. Every signalized intersection in an NC municipality is controlled by a traffic management center that logs signal phase and timing data. The logs can confirm what color was displayed at the moment of impact. Retention varies by city — Raleigh and Charlotte generally keep logs 30 to 60 days — but the data is gone once the retention window passes.

911 and CAD audio: 90 to 180 days. Police dispatch audio and Computer-Aided Dispatch logs are public records under N.C. Gen. Stat. § 132-1. If the other driver made an at-scene admission about the signal ("I thought I had time, I saw the light was yellow") before they had time to think about insurance liability, it may be captured on the 911 recording or the officer's body camera.

How to Request Traffic Signal Timing Logs in NC

Traffic signal timing data is held by the city or town transportation department, not by the police. A preservation request must go to the right office:

• Raleigh: Traffic Engineering Division, Public Works Department
• Charlotte: Charlotte Department of Transportation (CDOT), Signal Operations
• Durham: Traffic Engineering Division, Department of Transportation
• Greensboro: Transportation Department, Traffic Engineering
• Other municipalities: Contact the Public Works or Transportation Department and ask specifically for the traffic signal operations or traffic management center contact

Your request should identify the intersection by name and cross street, the date and approximate time of the accident, and ask for the signal phase and timing logs for that intersection for the 30 minutes surrounding the accident time.

Skid Marks and Accident Reconstruction

Physical evidence at the scene can also help resolve the dispute, but it must be documented before road crews clean it up.

Skid marks can establish approximately where each vehicle was braking and at what point. A short or absent skid from one driver followed by impact suggests that driver did not brake in response to a visible green light — they may have entered the intersection without expecting cross traffic. An accident reconstruction expert can work backward from the final rest positions of both vehicles to approximate speed and braking sequences.

Using Your Own Collision Coverage When No One Can Prove Fault

If the other driver's insurer denies the claim on mutual-fault grounds and you cannot produce objective evidence in time, your own collision coverage becomes the practical remedy.

Collision coverage pays for your vehicle repairs regardless of fault, subject to your deductible. It does not cover medical bills — for that, your MedPay or health insurance applies.

If you later obtain evidence that the other driver was at fault — signal timing logs, EDR data, or a witness who comes forward — your insurer's subrogation department can reopen the claim against the other driver's carrier. Keep all documentation.

When to Consider an Attorney

Most disputed-intersection cases with modest vehicle damage and no injuries are handled directly through collision coverage. An attorney is worth contacting when:

• You have injuries requiring medical treatment
• The other driver's insurer is suggesting you contributed to the accident
• You believe time-sensitive evidence exists that you cannot request yourself
• Your damages exceed your collision coverage limits

An attorney can send spoliation letters, preservation requests, and NCDOT records requests within hours of being retained. In a disputed-fault case where the evidence window is measured in days, early involvement matters.

Frequently Asked Questions

What happens in NC if both drivers say they had the green light and there are no witnesses?▾

Both insurers will likely issue mutual-fault determinations. Under NC's contributory negligence rule, neither driver can recover from the other's liability carrier — both claims are denied. Each driver is left using their own collision coverage, subject to their deductible.

How do I request traffic signal timing logs to prove the other driver ran a red light in NC?▾

Send a written preservation letter to the city's traffic engineering or transportation department on the day of the accident. In Raleigh, contact the Traffic Engineering Division; in Charlotte, contact CDOT; in Durham, contact the Traffic Engineering office. Retention periods are typically 30 to 90 days, so you must act within the first week.

If insurance says both of us are at fault for the intersection accident, can I still get paid?▾

Not from the other driver's liability carrier. Under NC law, any contributory negligence — even 1% — bars you from recovering from the other driver's insurer. Your practical remedy is your own collision coverage, minus your deductible, if you carry it.

Does NC's contributory negligence rule mean I get nothing if the other driver claims I ran the red light?▾

Yes, if the adjuster accepts the other driver's version. That is why gathering objective evidence — signal timing logs, EDR data, traffic camera footage — before it disappears matters so much. A disputed-fault outcome where neither driver can prove the other ran the light routinely ends with both claims denied in NC.

What evidence can prove who had the green light in a NC intersection accident when there are no cameras?▾

Traffic signal timing logs from the city traffic management center can show what color the signals were at impact time. Skid mark analysis and accident reconstruction can establish speed and braking. The other driver's Event Data Recorder records speed and braking in the 5 seconds before impact. 911 audio may capture an at-scene admission. Nearby private cameras (Ring, business CCTV) sometimes cover the intersection.

How quickly is traffic camera footage deleted after an NC intersection accident?▾

City traffic management cameras and NCDOT cameras typically delete footage within 24 to 72 hours. A preservation letter must go to the correct agency the same day as the accident. Do not wait for the police report — by the time you get it, the footage may already be gone.

Can I subpoena the other driver's car's black box in a disputed intersection accident?▾

Yes. The Event Data Recorder (EDR) in modern vehicles records speed, braking, and throttle position in the seconds before impact. In litigation, this data can be subpoenaed. However, if the vehicle is driven again before the data is preserved, it can be overwritten — especially after a hard braking event. Preservation must happen within days of the accident.