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Traffic

Overheight Vehicle

Using AI vehicle-height recognition and real-time warning/interception, existing roadside cameras are upgraded into a 24x7 proactive anti-collision guardian for bridges, tunnels, and overpasses. Within a safe distance before a vehicle reaches the structure, the system determines in real time whether the vehicle's height exceeds the clearance limit, and automatically activates warning signs, variable message signs (VMS), and diversion guidance — turning overheight vehicles away before the last decision point to prevent collisions.

Overheight Vehicle

Customer challenges

1

Bridge and tunnel strikes are usually discovered only after the fact, once the structure is already damaged

2

Today's reliance on static height-limit signs alone means drivers easily overlook or misjudge vehicle height

3

A vehicle's actual height varies with load and suspension, making it hard to know in advance

4

Once a strike occurs it causes road closures, traffic disruption, and high repair costs

5

Lack of evidence records makes liability determination and claims slow and drawn-out

Customer benefits

Proactively intercepts before a strike happens, rather than investigating afterwards

Sharply reduces the risk of structural damage to bridges and tunnels

Avoids the traffic-disruption losses of road closures and emergency repairs

Protects driver safety and cargo from loss

A complete evidence chain speeds up liability determination and insurance claims

Leverages existing roadside equipment, lowering rollout cost

Key features

AI Vehicle Height Detection

Detects vehicle height with AI before the restricted structure.

Smart Warning & Diversion

Warns and diverts overheight vehicles before they reach the structure.

Clearance Registry Management

Maintains a registry of clearance heights for monitored structures.

Evidence & Analytics

Captures evidence and analyzes overheight events.

Before & after

Before Static height-limit signs, left to the driver's own judgment After — with Linker AI Nexa AI proactively detects actual vehicle height, achieving an interception rate close to 100% for over-height vehicles
Before A strike is known only after it happens After — with Linker AI Nexa real-time warning and interception before the strike; incident count down 70%+
Before Vehicle height estimated by eye After — with Linker AI Nexa dual determination (vision + light-curtain sensing); false and missed detections sharply reduced
Before Clearance-height data is outdated After — with Linker AI Nexa Clearance registry maintained dynamically, auto-corrected after road resurfacing
Before Liability hard to determine After — with Linker AI Nexa complete image and data evidence; determination time cut 50%+
Before Damage handled only after it occurs After — with Linker AI Nexa diversion guidance; structure repair cost down 60%~80%