Alertness Testing by BLT

A quick test for alertness? We have that. Let us know what you need for your worksite or group.

That remains true but Bowles-Langley Technology, Inc. has now merged with Predictive Safety, LLC. Together we can offer our customers significant new resources and support. Please check the contacts page for inquiries and support.

Recent News



I am at the International Conference on Fatigue Management in Transportation Operations. Anneke Heitmann has just presented the results of our three year study of sleep deprivation and alertness testing. Audience interest and participation was very good. Our booth in the exhibits room has attracted numerous interested parties from a great many different industries. We […]


Brain Busters

The web is a great place to test and exercise your brain. Remembering links, tabs and bookmarks takes memory capacity. Navigating each different site takes brain power. You can even find sites designed just for this purpose. Our is one of those but with a difference. It’s designed around the supposition that if the […]


Drunk Pilots – Again?

At Heathrow Airport last Sunday a United Airlines pilot was arrested in the cockpit just prior to takeoff on suspicion of being drunk. He was. He would have taken the controls of the Boeing 777 had it not been for a last minute call from an observant ground crew. It could have been an extremely […]


Inattention at Metrolink

The Metrolink accident in Chatsworth, California last month cost 25 lives. The question is why. What can be done now. Immediate after the fact accident reports can often focus a single error. In this case the text-messaging engineer seems to have been at fault. But experience shows that safety failures come from system failures not […]


A Failed Policy Made Worse

The Department of Transportation (DOT) mandates that transportation companies test their workers for drug use on a regular basis. This is done by testing urine samples. Over the years a range of evasive tactics have been developed by employees who don’t want to be tested and by companies that don’t want to spend the money […]

BLT is a unique company dedicated to providing new solutions for assessing human performance. Our technologies draw on a wide range of management experience and scientific knowledge to provide customers with solutions that are practical, understandable and useful.