Speed is a factor in roughly a third of all fatal crashes nationally, and Florida’s numbers track that pattern. Excessive speed doesn’t just increase the likelihood of a crash. It exponentially increases the severity of injuries when a crash happens. The physics are unforgiving: impact force rises with the square of velocity, meaning a driver going twice the speed limit hits with four times the force.
If you’ve been hurt in a crash caused by a speeding driver in Florida, the liability analysis has specific features worth understanding, and the damages picture tends to be more severe than in lower-speed accidents.
Speed as Negligence
Every licensed driver in Florida has a legal duty to operate their vehicle at a safe speed. That duty has two components.
First, drivers must comply with posted speed limits. Exceeding the posted limit is a violation of Florida law, and that violation is evidence of negligence per se, meaning the legal violation itself establishes the breach of duty without requiring additional proof that the driver was acting unreasonably.
Second, even within the posted speed limit, drivers must adjust their speed to conditions. Florida law requires drivers to reduce speed for curves, hills, intersections, pedestrian crossings, narrow roads, weather conditions, and traffic density. A driver going 45 miles per hour in a 45-mile-per-hour zone who hits a car that was clearly visible ahead of them because they couldn’t stop in time was driving too fast for conditions, even though they weren’t technically exceeding the limit.
Both forms of speeding support a negligence claim. The per se violation of exceeding the posted limit is often easier to establish because it requires only proof of the speed, but excessive speed for conditions is equally actionable and often the more serious form of recklessness.
Establishing the Speed
Proving a driver was speeding requires evidence. That evidence comes from several sources, and the quality and quantity of what’s available depends significantly on how quickly the investigation starts.
Event Data Recorders. Most modern vehicles have an EDR, commonly called a black box, that captures vehicle speed, braking application, throttle position, and other data in the seconds before a crash. This data is often the most precise evidence of speed available, because it comes from the vehicle itself rather than from witness estimates or reconstruction calculations.
EDR data can be overwritten or lost if the vehicle is repaired or destroyed before the data is downloaded. Preservation of the at-fault vehicle and its EDR requires prompt action, including a preservation letter to the at-fault driver and their insurer.
Accident reconstruction. Accident reconstruction experts analyze physical evidence at the scene to calculate speed. Skid mark length and composition, vehicle crush depth and deformation patterns, final rest positions of the vehicles, and debris fields all feed into the reconstruction calculation. These experts can establish that a vehicle was traveling significantly above the speed limit even without EDR data.
Michael McCabe’s civil engineering background is directly relevant in accident reconstruction analysis. The physics of vehicle collisions, the relationship between speed and crush depth, and the mathematics of energy dissipation in a crash are areas where his engineering expertise informs both the selection and preparation of accident reconstruction experts and the evaluation of the defense’s reconstruction arguments.
Traffic citations. If the officer who responded to the crash cited the at-fault driver for speeding, that citation is documented in the police report and is evidence of the speeding violation. Citation or no citation, the investigation shouldn’t stop there.
Surveillance and dashcam footage. Video footage from traffic cameras, dashcams, and business surveillance systems can establish a vehicle’s speed before the crash. Speed can sometimes be calculated from video footage using frame rate analysis and reference points.
Witness accounts. Witnesses who observed the at-fault vehicle before the crash often describe it as going fast, weaving through traffic, or tailgating, which together establish a pattern of speed-related behavior. While witness estimates of specific speeds are often imprecise, they corroborate the physical evidence.
The Severity Problem
Speeding accidents produce more severe injuries than lower-speed crashes, and that severity directly affects the damages picture.
At higher speeds, the energy transferred in a collision is substantially greater. Airbags and crumple zones are designed to manage energy within a range. When that range is exceeded by excessive speed, the protective systems are overwhelmed and the occupants absorb forces they’re not designed to withstand.
Traumatic brain injuries, spinal cord damage, multiple system trauma, internal organ injuries, and fatalities are all more common in high-speed crashes than in lower-speed impacts. Recovery times are longer, surgical interventions are more extensive, and permanent effects are more frequent.
This injury profile produces larger damages: more medical expenses, more lost wages, more extensive future care needs, and greater non-economic losses from pain, suffering, and permanent limitations. The damages in a serious high-speed crash case can be substantially larger than a comparable liability case at lower speeds.
Punitive Damages in Speeding Cases
Florida allows punitive damages when a defendant’s conduct demonstrates gross negligence, defined as behavior so reckless that it constitutes conscious disregard for the safety of others. Not every speeding case meets this standard, but some do.
A driver who was going 90 miles per hour in a 45-mile-per-hour zone through a school zone during morning hours wasn’t making a judgment call. A driver who was street racing on a public road made a deliberate choice to engage in conduct known to be extremely dangerous. Further, a driver with a history of prior speeding violations who continues to drive at excessive speeds shows a pattern of conscious disregard.
When the facts support a punitive damages claim in a speeding case, it changes the settlement dynamic significantly. The insurer has greater exposure, the defendant faces personal financial liability above policy limits in cases where punitive awards exceed coverage, and the evidentiary picture of the driver’s conduct becomes central to the case in a way that focuses both parties on the full scope of accountability.
Comparative Fault in Speeding Cases
Florida’s modified comparative fault rule applies in speeding accident cases. If the injured party contributed to the crash, their recovery is reduced by their percentage of fault. If they’re more than 50% at fault, they recover nothing.
Defense attorneys in speeding cases often argue that the injured party pulled out in front of the speeding driver, failed to yield, or otherwise contributed to the crash. These arguments require careful rebuttal. The physics of the accident often reveal that the driver’s excessive speed made it impossible to avoid the crash regardless of the other party’s actions. A driver going twice the speed limit who was impossible to see in time because of their speed creates a different comparative fault picture than one going five miles per hour over the limit.
Accident reconstruction experts and the EDR data work together to establish what a reasonable driver at the posted speed limit would have been able to do in the same situation, which reframes the comparative fault analysis significantly.
Commercial Vehicle Speeding
When a speeding driver is operating a commercial vehicle, federal regulations enter the picture. Commercial drivers are subject to speed requirements that include not only posted limits but requirements to adjust speed for conditions, road type, and cargo. Exceeding these requirements violates federal motor carrier safety regulations.
Violations of federal speed regulations by a commercial driver constitute negligence per se in the civil case and create a direct path to employer liability. The trucking company whose driver was speeding faces liability both vicariously and, if company policies incentivized speed or the company failed to adequately monitor driver behavior, directly.
The EDR data in commercial vehicles is often more detailed than in passenger vehicles, capturing a longer window of pre-crash data and more parameters. Obtaining and analyzing this data requires prompt action and technical expertise.
Jacksonville and Northeast Florida Context
Jacksonville’s interstate system sees chronic speeding on I-95, I-295, and I-10, where traffic volume and road design encourage driving well above posted limits. The stretch of I-95 through downtown Jacksonville and the I-295 beltway are particularly associated with high-speed crashes.
Surface roads including Beach Boulevard, Atlantic Boulevard, and US-1 through St. Johns County see speeding-related crashes where the mix of high posted limits and frequent intersections creates dangerous conditions when drivers push above the limit.
The growth of Northeast Florida, with significant new development in Nocatee, Ponte Vedra Beach, and the Palm Valley corridor, has brought increased traffic volume to roads that weren’t designed for it. Speed-related crashes on these roads as traffic patterns adjust to new development are a recurring pattern we see in cases throughout St. Johns County.
What to Do After a Speeding Accident
Document the scene thoroughly. Photographs of vehicle positions, damage, skid marks, and the road conditions capture physical evidence that reconstruction experts use. Note any witnesses and get their contact information before they leave.
If the at-fault driver made any statements at the scene about their speed, how fast they were going, or that they didn’t have time to brake, tell the officer and make sure it’s documented in the report.
Seek medical care the same day. High-speed crash injuries often involve internal trauma that isn’t immediately obvious. Same-day evaluation creates the medical record connecting your injuries to the crash.
Contact an attorney immediately. The EDR preservation window is narrow. The accident reconstruction needs to happen while the scene evidence is still available. Surveillance footage has a limited retention window. In speeding cases, the evidence picture is time-sensitive in ways that make early legal involvement essential.
Build the Case That Reflects What Actually Happened
Speeding accident cases require technical investigation that goes beyond what a standard fender-bender claim demands. The physics of the crash, the EDR data, the reconstruction analysis, and the damages that flow from high-speed impacts all require an attorney and support team that can handle the technical complexity.
Martino & McCabe handles speeding accident cases throughout Ponte Vedra Beach, Jacksonville, St. Johns County, Duval County, and Clay County. If you’ve been seriously hurt by a speeding driver, the strength of your case depends on building the evidentiary foundation quickly and correctly.
Call (904) 999-4657 or reach out at consultation@martinomccabe.com for a free consultation.

Michael J. McCabe, is a partner and owner of Martino & McCabe and practices in the areas of personally injury, auto accidents, and premises liability. He is a licensed Professional Engineer and received his Bachelor of Science in Civil Engineering from Florida State University. He earned his Juris Doctor degree from Florida Coastal School of Law in 2005 while continuing to work as a Professional Engineer.
