After a Series of Fatal Accidents, the Feared Speed Radars Are Back on the Dangerous BR-163. Drivers Must Stay Alert: With Strict Limits of 60 km/h, Enforcement Promises to Be Unyielding.
Safety on Brazilian highways is a constant concern for authorities and drivers.
Critical sections, marked by high accident rates, require effective measures to protect lives and ensure safer traffic.
Recently, according to the site Revista Especiais, the speed radars have been reinstalled on the BR-163, between the municipalities of Mercedes and Guaíra, in Paraná.
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After a period of deactivation, the National Department of Transportation Infrastructure (DNIT) reactivated the devices at strategic points: one at the Portal of Mercedes and another in the area known as ‘Serrinha’ of Bela Vista, in Guaíra, near the Guaçu River Bridge.
The speed limit in these sections is 60 km/h, and the devices will become operational in the coming days.
The initiative aims to discipline traffic and increase safety for drivers and passengers using the highway.
Flow Control at the Portal of Mercedes
At the Portal of Mercedes, the reinstallation of the radar aims primarily to control the intense flow of vehicles entering and exiting the city.
The area records a high volume of traffic daily, which increases the risk of collisions and other incidents.
With the reactivation of the equipment, a significant reduction in accidents is expected, promoting safer traffic for residents and visitors.
Enhanced Safety at the ‘Serrinha’ of Bela Vista
The ‘Serrinha’ region of Bela Vista, in Guaíra, is characterized by sharp curves and steep descents, factors that contribute to serious accidents.
In December 2024, two motorcyclists lost their lives in incidents in this specific section.
The reinstallation of the radar aims to curb reckless practices, such as speeding, providing a safer travel experience for all drivers passing through the area.
Accident History and Preventive Measures
The BR-163, especially in the stretch between Mercedes and Guaíra, has a concerning history of accidents.
In August 2023, radars were installed near the locality of Dalmina, between Marechal Cândido Rondon and Mercedes, after several fatal accidents, including a pile-up that resulted in the deaths of five people.
These devices were installed by DNIT in response to local community demands, aiming to enhance safety in identified dangerous sections.
Divergent Opinions Among Drivers Passing Through the BR-163
The reactivation of radars on the BR-163 generates distinct opinions among drivers using the highway.
Some drivers see the measure as essential to curb speeding and prevent tragedies.
On the other hand, some consider the action as excessive enforcement, fearing an increase in fines and questioning the effectiveness of radars in reducing accidents.
Despite the differences, road safety remains a common concern among highway users.
Importance of Electronic Enforcement
The implementation of radars and electronic speed bumps on highways with high accident rates has proven to be an effective measure in reducing occurrences.
In 2014, for example, an electronic speed bump was installed on the BR-163, in Mercedes, aimed at decreasing accidents caused by speeding.
At that time, the Federal Highway Police highlighted the expectation of a significant reduction in accident rates with the installation of the device.
Recent Updates and Continuation of Actions On the BR-163
In October 2024, a serious accident involving three trucks occurred on the BR-163, between Guaíra and Mercedes, resulting in one person being critically injured.
Incidents like this reinforce the ongoing need for preventive measures and enforcement to ensure the safety of highway users.
The reinstallation of radars is part of a set of actions aimed at minimizing risks and promoting safer traffic for all.
For experts, the reinstallation of radars on the BR-163, between Mercedes and Guaíra, represents a significant effort by authorities to enhance safety in critical sections of the highway.
Although there are divergent opinions among drivers about the measure, the main goal is clear: to reduce accidents and save lives.
Electronic enforcement, combined with driver awareness, is a fundamental tool in promoting safer and more responsible traffic.

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