How PennDOT Construction Zones in Montgomery County Lead to More Merge and Rear End Crashes

As warmer weather begins to roll into Montgomery County, construction zones are becoming more prevalent along area roads and highways. Highways become more congested as traffic bottles up approaching these construction zones. In an effort to avoid the slowdowns, some drivers put their fellow motorists at risk of significant injuries by operating their vehicles without consideration for those around them. Work zones across Pennsylvania create reduced speed limits, lane restrictions, and shifting traffic patterns that increase congestion and elevate crash risk for motorists traveling through construction areas. As a result, Pennsylvania continues to record more than 100,000 crashes annually statewide, with work zones consistently identified as high-risk areas where congestion, lane restrictions, and shifting traffic patterns contribute to serious collisions.

In 2023 alone, Pennsylvania recorded approximately 1,216 work zone crashes, which resulted in 22 fatalities—an increase from 14 fatalities in 2022. A hallmark of PennDOT construction zones is the difficulty drivers face when merging into temporary driving lanes. The more impatient a driver is, the seemingly more difficult it becomes to merge correctly. A so-called “zipper merge” requires some skill and an abundance of patience to avoid a rear-end accident successfully.

What merging means within a PennDOT construction zone

Montgomery County drivers are undoubtedly familiar with signs alerting them to upcoming construction zones on the highways in our area. Many drivers will immediately merge into the “open” lane as soon as a construction sign comes within view.

What these and many other drivers do not realize is that it is acceptable to wait to merge until just before the construction zone is reached. This type of merging is known as a “zipper merge” due to how traffic from one lane merges directly into an open lane.

The benefit of a zipper merge is that drivers utilize both lanes of the highway until one is completely closed due to construction. As a result, the available lanes are utilized to the fullest extent possible rather than all drivers attempting to use only one lane for a lengthy period of time. What’s not a benefit it how merging leads to more rear-end accidents. Rear-end collisions are among the most common crash types in highway work zones, largely due to sudden stops, slowdowns, bad merging, and unexpected changes in traffic flow.

How zipper merging presents problems for Montgomery County drivers

Zipper merging is considered to be the most effective manner of consolidating two lanes of traffic into one. Despite the benefits of the zipper merge, many drivers do not understand its utility. Rather, these drivers will operate their vehicles aggressively in order to prevent their fellow motorists from merging into their lane. PennDOT has identified speeding and aggressive driving as leading contributors to work zone crashes across the state, reinforcing the importance of reduced speeds and increased driver attention in construction areas.

These “early” mergers slow down traffic and encourage other drivers in their lane to prevent zipper mergers from completing their lane changes. A driver who has waited a considerable length of time in the open lane will attempt to bar other vehicles from merging too late.

The result of this hesitancy to allow zipper mergers over into their lane is an increase in a variety of car accidents, especially rear-end accidents.

What types of car accidents may occur in PennDOT merge areas?

Within a construction zone, zipper merges work well. That is, when the drivers attempt the maneuver, they understand how to do so. A problem that drivers run into (no pun intended) is that warning signs are often severely lacking in these areas. Drivers will receive minimal notice before two lanes abruptly reduce to one lane.

Another major concern with merging within a construction zone is that early merging is seen as the polite driving maneuver. Waiting until the last moment and then zipping into the merge lane is seen as cutting in line. In reality, the zipper merge is how these construction zone merges are designed to work.

Rear-end accidents occur commonly in zipper merge areas within construction zones. A driver will attempt to merge into a lane and then will stop abruptly once the lane change is complete. This does not give the driver in the established merge lane any opportunity to avoid the incoming vehicle.

What this can often lead to is a multi-car accident. One car slamming on its brakes can cause a chain reaction of vehicles attempting to do the exact same thing. All it takes is one car stopping too quickly for an entire row of vehicles to be affected.

Proving fault in a multi-car, rear-end accident

When a driver attempts to merge in a way that is unsafe, typically it is that driver who winds up being at fault. Unfortunately, if you are the driver who is injured due to the negligence of an unsafe merger, determining fault is not always straightforward. This is especially true if a driver in the merge lane was not allowing the merging vehicle to pass by, blocking or otherwise impeding their path.

It is critical that an injury victim understands how comparative negligence works in the context of a multi-vehicle accident. Contact an experienced Montgomery County car accident attorney to learn more about how our team of legal professionals can help you sort through the complex circumstances associated with your case.

Key Pennsylvania Work Zone Stats

• Pennsylvania records over 100,000 crashes annually statewide, with work zones consistently identified as high-risk areas.
• In 2023, Pennsylvania reported approximately 1,216 work zone crashes across the state.
• Those crashes resulted in 22 fatalities in work zones in 2023.
• In recent reporting periods, nearly half of work zone crashes involved injury or fatal outcomes.
• Speeding and aggressive driving remain leading contributors to Pennsylvania work zone collisions.
• Rear-end and chain-reaction crashes are among the most common types of work zone collisions due to sudden stops and lane reductions.

How to proceed after a rear-end accident in a construction zone

Determining if you or any of your passengers have been injured is the first step to take after an accident. If necessary, contact 9-1-1 for emergency personnel if any injuries appear to be serious.

If you have not been seriously injured, then you should attempt to take photographs, obtain witness statements, and otherwise collect potential evidence. There is no guarantee you will be able to photograph any of the vehicles involved, nor return to the scene of the accident, again. Therefore, take advantage of every opportunity presented to you when attempting to build a case and defend your rights.

Medical care should be sought. Even if you do not think that your injuries are significant, it is best to have them checked out. Soft tissue, back, and neck injuries frequently are worse on the day following an accident. Seeking medical care as soon as possible allows you to identify which areas of your body may become painful or have been injured.

Contact Anthony C. Gagliano, III, Esquire, P.C. for a free case review

Do not fight for your rights alone against a car insurance company. Contact Anthony C. Gagliano, III, Esquire, P.C., today for a free case review. We put our clients first and would do the same for you.