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Alcohol detection system by ALC-PRO: The 8-step process standardizing safety at Lien Ninh Bus

An alcohol detection system is the solution that Lien Ninh Transport and Services Joint Stock Company (Lien Ninh Bus) – an urban bus operator running a fleet of 111 VinFast electric buses with 178 drivers – chose to standardize its pre-shift safety checks. This is the story of how an urban transport company moved from subjective judgment calls to a measurable, tightly controlled safety process.

Why Lien Ninh Bus needed a standardized alcohol detection system

As an urban bus network operator, Lien Ninh Bus treats passenger safety as a mission-critical responsibility. Previously, driver alcohol checks relied mainly on subjective judgment and face-to-face assessment — an approach that made it difficult to quantify and standardize safety.

To strengthen operational safety control, Lien Ninh Bus deployed the ALC-PRO alcohol detection system to standardize pre-shift testing, improve the objectivity of assessments, and boost the effectiveness of safety management. The solution has also helped raise compliance awareness and build a stronger safety culture among drivers.

Device used: ALC-PRO II breathalyzer

Lien Ninh Bus’s 8-step alcohol testing process

Lien Ninh Bus built a closed-loop testing process to ensure every driver is checked before taking on a shift:

Driver arrives to start their shift
Vehicle handover office check-in
Alcohol testing with the ALC-PRO II device
Handover staff review the results
Pass confirmation
Confirmation logged on the staff assignment board
Handover of documents and vehicle
Driver begins their route

This clear, sequential process turns testing into a mandatory, standardized step across the entire dispatch operation — rather than something dependent on subjective assessment as before.

Changing mindsets: the human factor behind system effectiveness

Lien Ninh Bus believes that any new technology or process needs genuine buy-in from people to succeed. With that in mind, the company rolled out two coordinated management approaches:

Clear internal communication: Regular internal campaigns help drivers understand the human purpose behind the process — protecting themselves and their passengers.
Discipline tied to accountability: Strict penalties apply to violations, and safety control results are factored into the KPI of each route team.

Results after deploying the alcohol detection system

After a period of implementation, Lien Ninh Bus has recorded clear, positive shifts:

Driver awareness has risen noticeably; drivers have moved from passively accepting checks to actively cooperating and taking preventive responsibility.
Violation rates have dropped to a minimum.
The company has recorded zero traffic incidents related to alcohol violations.

Looking ahead: toward comprehensive driver health standards

Beyond maintaining effective alcohol control, Lien Ninh Bus is planning to expand its pre-shift checks into a broader driver health model. The company plans to pilot blood pressure and temperature monitoring devices to screen and track driver health more comprehensively before handing over a vehicle — helping raise the safety bar for public transport networks.

Conclusion

Lien Ninh Bus’s story shows that an effective alcohol detection system isn’t just about the device — it’s about how a company builds standardized processes, paired with internal communication and accountability-driven discipline. With ALC-PRO II, Lien Ninh Bus moved from subjective assessment to a safety process that is measurable, controllable, and scalable.

Is your company exploring an alcohol detection system for your drivers? Learn more about the ALC-PRO II solution or contact us for a consultation.