Greybox System
is an intelligent, highly configurable traffic signal control solution designed for complex or site-specific traffic management requirements. Built around a custom PLC controller, it uses the same signal lights and detection hardware as the Rapid Ramp System but enables far more advanced logic, including time-of-day operation, on-demand activation, priority overrides, dormant modes and conditional sequencing based on vehicle presence.This makes Greybox ideal for larger or higher-risk environments where traffic patterns vary and simple time-based control is insufficient, delivering greater flexibility, improved safety and a solution that can be tailored precisely to the site’s operational needs.
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Greybox Controller
The Greybox Controller is a custom-built PLC-based traffic signal controller designed for complex, site-specific traffic management applications. Unlike the Rapid Ramp Controller, which operates on simple time-based sequencing, the Greybox Controller enables advanced logic and conditional control tailored to individual site requirements. It processes multiple detection inputs and operational states to manage traffic dynamically, allowing sophisticated sequencing and decision-making without reliance on cloud connectivity or online portals. This makes it ideal for environments where reliability, configurability and standalone operation are critical, and a configurable counterpart within our wider internal traffic signal systems.
Arcos Traffic Light
The Arcos Traffic Lights are industrial-grade traffic signal heads designed for reliable operation in internal roadways, ramps and controlled access environments. Engineered for high visibility and durability, these signal units provide clear red and green indications that are easily understood by drivers in all lighting conditions. The modular design allows for flexible mounting and configuration to suit a wide range of site layouts (1 aspect through to 3 aspect), while robust construction ensures long service life in demanding indoor and outdoor environments. Fully compatible with both the Rapid Ramp and Greybox Systems, Arcos Traffic Lights deliver consistent, dependable visual control as part of a complete traffic management solution.
Echo Radar Sensor
The Echo Radar Sensor is a non-intrusive vehicle presence and detection solution designed for traffic signal and access control applications where reliability, directionality and ease of installation are critical. Using radar-based detection, the sensor accurately identifies approaching and stationary vehicles while allowing directional filtering to ensure only valid vehicle movements trigger the system. As a modern alternative to traditional inductive loop detectors, the Echo Radar Sensor eliminates the need for pavement cutting or civil works, significantly reducing installation time, disruption and ongoing maintenance. Its flexible mounting options and consistent performance in varied environmental conditions make it ideal for ramps, access lanes and internal roadways where precise, dependable vehicle detection is required.
Other Detection Options
In addition to radar-based detection, a range of alternative vehicle and user detection options can be integrated into the system to suit specific site requirements. These include inductive loop detectors embedded in the pavement, push buttons for manual or pedestrian-initiated calls, remote controls for authorised or on-demand activation, and interface triggers from external systems such as gates, doors or access control devices. Each option provides a reliable method of requesting or confirming vehicle movement, allowing the system to be configured for simple time-based operation or more controlled, user-initiated sequences. This flexibility ensures the most appropriate detection method can be selected based on site layout, usage patterns, installation constraints and operational preferences.
Greybox System
Areas Of Application
Multi-Direction Ramps – Residential & Mixed-Use Buildings
Greybox manages changing traffic demands on shared ramps by adapting signal operation to varying usage patterns throughout the day.
High-Traffic Ramps – Commercial Buildings
Ideal for high-turnover sites, these systems manage traffic flow on single-lane ramps and access points, reducing congestion and driver uncertainty during peak periods.
Complex Pinch Points – Industrial & Warehouse Environments
Ideal for sites with trucks, forklifts and mixed vehicle types, Greybox enables conditional sequencing to safely manage high-risk, shared access zones.
Loading Docks with Variable Demand
The system coordinates vehicle movements based on real-time presence and operational conditions, ensuring safe and efficient access during busy loading periods.
Internal Carpark Intersections & Conflict Zones
Greybox provides intelligent control at internal intersections, blind corners and merging points where multiple traffic movements must be actively managed.
Shared Vehicle, Pedestrian & Service Zones
Advanced logic allows traffic signals to respond to multiple user types and site conditions, improving safety in complex, mixed-use environments.
Greybox System
Benefits
Advanced Traffic Control
Enables intelligent, site-specific sequencing to manage complex traffic movements that cannot be handled by simple time-based systems.
Configurable to Site Requirements
Custom PLC logic allows the system to be tailored precisely to unique layouts, risks and operational needs.
Adapts to Changing Traffic Conditions
Supports time-of-day modes, on-demand activation and conditional responses to varying traffic patterns.
Improved Safety in High-Risk Environments
Actively manages multiple conflict points and mixed vehicle types to reduce collision risk in complex sites.
Greater Operational Control
Provides operators with finer control over traffic behaviour without reliance on cloud platforms or online portals.
Custom PLC-Based Control
Built on a programmable logic controller that enables advanced, site-specific traffic sequencing and decision-making.
Greybox System
Features
Time-Based Traffic Control
Operates using fixed, adjustable time sequences to alternate right-of-way between opposing traffic directions.
Multiple Operating Modes
Supports time-of-day switching, default and activation modes, on-demand calls and dormant operation.
Conditional Logic Sequencing
Traffic movements are controlled based on vehicle presence, system state and predefined rules rather than fixed timing alone.
Priority & Override Functions
Allows configurable priority assignment and manual or automated overrides to suit operational requirements.
Supports Complex Site Layouts
Designed to manage multiple conflict points, access lanes and variable traffic patterns within a single system.
Flexible Detection Integration
Compatible with radar sensors, loop detectors, push buttons, remote controls and external system triggers.
Standalone Operation
Operates independently with no reliance on cloud connectivity or online portals.
Expandable I/O Capability
Supports additional inputs and outputs, allowing the system to scale as site requirements evolve.
Download the Greybox System brochure for detailed technical information
More Information
How It Works
The Greybox System operates using programmable, site-specific logic rather than fixed time sequences, allowing traffic control behaviour to adapt to real-world conditions. Unlike the Rapid Ramp System, which runs on a predefined priority cycle, Greybox continuously monitors vehicle presence and system state to determine when and how traffic signals should operate. This enables the system to remain dormant when no vehicles are present, only activating signal control when a valid detection occurs.
When triggered, Greybox executes the appropriate programmed sequence based on the site’s operational rules. This can include activating red signals to stop opposing traffic, dynamically adjusting clearance times, or switching traffic priorities based on the time of day, such as outbound priority in the morning and inbound priority in the evening. On-demand logic allows the system to respond quickly when vehicles are waiting, reducing unnecessary delays when ramps are clear. With its PLC-based architecture, a wide range of additional functions and sequencing options can be programmed, ensuring the system is precisely matched to the site’s traffic patterns and safety requirements.
Why Choose Us
What makes us different
We make parking simpler, safer, and more efficient with dependable technology and a service team committed to your success.
We’re Fast
Speed stuns and we believe this to be a critical part of how we operate, respond and resolve.
Reliable Systems
We have partnered with the world’s leading innovators in parking solutions, and all our systems are developed to ensure the lowest total cost and frustration to the end users.
Backed by ParcCare
Our own proactive aftercare team ensures you have 1 dedicated agent that will resolve service needs efficiently. We have all parts in stock for rapid turnaround and provide flexible service offerings.
Compact, Agile Team
We are not lost in corporate red tape and can get act fast. We genuinely care about resolving parking concerns for our tight-knit group of clients.
Total Solutions Provider
We are experts in our field of work. Our range of solutions ensures we can meet most of our client’s needs without having to outsource.
Contact our team to discuss a Greybox solution tailored to your site.
Why Choose Us
Greybox uses a custom PLC controller with programmable logic, allowing complex, site-specific traffic sequencing beyond simple time-based operation.
Yes. Greybox supports time-of-day switching, allowing traffic priorities and sequences to change automatically for morning, afternoon or peak traffic periods.
The system can remain dormant with signal lights inactive until a vehicle is detected, reducing unnecessary signal operation.
Yes. On-demand logic allows the system to adjust sequencing dynamically based on vehicle presence, minimising wait times when ramps are clear.
No. The system operates independently with no reliance on cloud services or online portals, ensuring reliable standalone operation.