How to Prove Liability for Running a Red Light Collision in Pennsylvania

The information on this site is for general informational purposes only, may be outdated, and is not legal advice; do not rely on it without consulting your own attorney. See full disclaimer.

Detailed Answer

1. Recognize the Traffic Violation (Negligence Per Se)

Under Pennsylvania law, running a red light violates the state Vehicle Code. Section 3111(a) of Title 75 of the Pennsylvania Consolidated Statutes (75 Pa.C.S. § 3111(a)) requires drivers to stop at a steady red signal. A proven violation creates a presumption of negligence per se. You must then connect that violation to the collision and your injuries.

2. Prove the Four Elements of Negligence

  1. Duty: All motorists owe a duty to obey traffic laws and drive safely.
  2. Breach: Entering an intersection against a red signal breaches that duty by violating § 3111(a).
  3. Causation: Show the red-light violation directly caused the crash—e.g., the other car struck your vehicle as it lawfully proceeded through the intersection.
  4. Damages: Document physical injuries, vehicle damage, and related costs (medical bills, repair estimates, lost wages).

3. Gather and Preserve Key Evidence

Strong evidence cements your claim:

  • Police Report: Obtain the official crash report. Officers typically note signal violation, point of impact, and witness contact information.
  • Traffic Camera Footage: Many intersections have red-light cameras or nearby business surveillance. Request video promptly—some systems purge recordings after days or weeks.
  • Witness Statements: Collect names and contact details of eyewitnesses who saw the signal status and collision.
  • Photographs and Video: Take clear images of the scene, skid marks, vehicle damage, traffic signals, and debris patterns.
  • Expert Analysis: Accident reconstruction specialists can use vehicle positions, damage profiles, and physical evidence to confirm signal timing and impact sequence.

4. Document Your Injuries and Expenses

Maintain thorough records of medical treatment, diagnoses, therapy sessions, medication costs, and time off work. Itemize vehicle repair bills, towing fees, and any out‐of‐pocket expenses related to the crash.

5. Work with Insurers and Counsel

Report the collision to your insurer promptly. Provide copies of the police report, photos, and medical documentation. If the at-fault driver’s insurer denies liability or undervalues your claim, consult a qualified personal injury attorney to explore settlement or litigation.

Disclaimer: This article is for educational purposes only and does not constitute legal advice. Always consult a licensed attorney about your individual situation.

Helpful Hints

  • Request camera footage as soon as possible—some systems erase recordings quickly.
  • Use your smartphone to photograph the scene before vehicles are moved.
  • Keep a daily journal of pain levels, doctor visits, and recovery progress.
  • Ask the police report for signal-phase diagrams or timing logs if available.
  • Preserve all repair invoices and receipts related to the accident.

The information on this site is for general informational purposes only, may be outdated, and is not legal advice; do not rely on it without consulting your own attorney. See full disclaimer.