Collision avoidance is the loosest term in this market. It gets applied to a beeper that sounds when someone is close and to a system that takes the speed off a truck before the operator has reacted. Both are sold under the same two words, and the price difference between them is large enough that the distinction should be the first thing you settle.
Warning: the operator still decides
Most of the category warns. Detection happens, an alert reaches the cab, and what happens next depends on a human being at the end of a long shift.
Blaxtair alerts the driver when a person is genuinely at risk, and its engineering effort goes into not alarming for everything else, since an alert that fires constantly stops being information. Trio Mobil pairs UWB tags with a forklift-mounted AI camera for people who carry no tag, adds smart zones at intersections and operator alerts, and backs them with facility-wide monitoring so the pattern of near misses becomes visible. The company also describes speed reduction in one or two phases on compatible speed-control systems, which puts it in the next group as well. Litum and Wipelot both cover collision warning from a real-time location angle, useful where indoor positioning earns its keep operationally as well.
Warning systems are not second best. They are cheaper, simpler, work on any truck regardless of make, and a well-tuned alert genuinely changes behaviour. Just be clear that at three in the morning, on the fourth night shift in a row, the alert is a suggestion.
Intervention: the system acts
A smaller group changes what the machine does.
Speedshield does it in two ways. AiVA can trigger slow-down or stop when someone enters the danger zone, and the Speed Limiter holds a truck to a set speed regardless of load or incline, varying by zone. ELOKON ELOshield can attach a different reaction to each zone, so the outer boundary sounds an alarm while the inner one cuts speed automatically. ALIS Tech builds its whole proposition around control: two-phase deceleration, indoor and outdoor speed zones, narrow aisle traffic management, and gates that slow a truck according to how far the door has opened.
The footnote that decides feasibility
Every intervention claim carries a condition, and Speedshield states it plainly on its own pages: subject to OEM integration.
Slowing or stopping a forklift means driving a control the truck manufacturer has to expose, and that varies by make, model and year. On a mixed fleet assembled over a decade of lease cycles, some trucks will support it, some will need an engineering exception, and some will not support it at all.
So the practical question is never whether a vendor can stop a forklift. It is which of your trucks, by model and serial range, they have already integrated with, and what the system does on the ones they have not. Get that list in writing before intervention appears in your business case. Our guide to the forklift speed limiter covers the policy work that should precede the hardware choice.
Choosing between them
Buy warning if your fleet is old or mixed beyond practical integration, if budget is the binding constraint, or if your incidents trace to visibility rather than speed.
Buy intervention if the same corner keeps producing near misses regardless of coaching, if you run shift patterns where attention predictably degrades, or if a serious injury would be existential for the business. Enforcement is the only thing that works when nobody is watching.
Many sites end up with both, and that is a reasonable outcome rather than a failure to decide: warning across the fleet, intervention on the trucks and zones where the risk concentrates.
What none of it replaces
A detection system is a last line. It does nothing about a blind corner you could have designed out, a pedestrian route that should never have crossed a traffic lane, or a pick face that puts people in an aisle during replenishment. Look at forklift safety barriers and your traffic plan before assuming the answer is electronic, because separation costs less and never needs a firmware update.
What to verify
Ask for the integration list by truck model. Ask what happens to a truck mid-lift when the system intervenes, because stopping a machine carrying a raised load has its own hazards. Ask for the false alarm rate over a full shift, and treat evasion as an answer. Then pilot in your worst area and count near misses before and after.
The risk scorer identifies that area and produces one scope for every vendor, which is the only way the quotes come back genuinely comparable. For the underlying technology choice, see collision avoidance and our roundup of proximity sensors.
