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Croatia Highway & Tunnel Traffic Management Systems | ATMS, TMC, Tunnel Control & SCADA | Telegra

Croatia Highway and Tunnel Traffic Management Systems

Project Overview

Telegra delivered customized Advanced Traffic Management System (ATMS), tunnel control, SCADA functionalities, and ITS integration solutions for multiple highway sections, tunnels, and traffic control centers in Croatia.

The systems were implemented for Croatian motorway operators “BINA Istra”, “Autocesta Zagreb-Macelj”, “Hrvatske autoceste”, and “Hrvatske ceste”. Where applicable, the systems were deployed across motorway and national road sections including:

A1: Zagreb - Split - Dubrovnik,
A2: Zagreb - Macelj,
A3: Bregana - Zagreb - Lipovac,
A4: Zagreb - Goričan,
A5: Beli Manastir - Osijek - Bosnian border,
A6: Rijeka - Bosiljevo 2,
A7: Rupa - Matulji - Diračje - Orehovica - Šmrika,
A8: Kanfanar - Matulji,
A9: Umag - Pula,
A10: Bosnian border - Ploče interchange,
A11: Zagreb – Sisak,
DC76: Tunnel Sveti Ilija,
D404: Rijeka – Draga,
D102: Krk Island Bridge

The deployments supported traffic management, tunnel control, incident management, driver information, integrated SCADA functionalities, and field-device integration across Croatian highway and tunnel environments. These systems were deployed across multiple road sections, tunnels, and traffic control centers, supporting segment-specific and tunnel-specific traffic operations rather than a single centralized nationwide traffic control platform.

Client Challenge

Croatia experienced a major increase in highway traffic, especially during summer tourist seasons, requiring safe and efficient movement of people and goods across newly built highways and tunnel corridors.

The Croatian highway network expanded rapidly, with more than 1,000 km of highways and approximately 100 km of tunnel tubes built during the relevant period.

The main operational and delivery challenges included:

managing heavy seasonal traffic loads,
supporting traffic safety across highways, tunnels, bridges, and viaducts,
implementing ATMS systems,
integrating SCADA systems in long tunnels,
integrating new highway sections with existing systems,
implementing incident management with special focus on tunnel safety,
implementing decision support functions for traffic operations,
supporting event logging and reporting,
commissioning and testing systems within very short implementation windows,
training operators in newly built traffic control centers,
ensuring compatibility between new and old road sections.

Telegra Solution

Telegra implemented customized intelligent traffic management systems based on the topXview™ Complete ITS Software Platform.

The solution included integration of ITS field elements, tunnel systems, video, SCADA functionalities, sensors, traffic control equipment, and operator workflows into unified traffic management environments.

The implemented systems included:

topXview™ Complete ITS Software Platform,
ATMS software for highway and tunnel operations,
Traffic Management Center software,
tunnel control and integrated SCADA functionalities,
Dynamic Message Signs,
Variable Speed Limit Signs,
Lane-Use Control Signals,
vehicle detection systems,
emergency roadside telephone systems,
CCTV and Automatic Video Incident Detection integration,
traffic counters and classifiers,
License Plate Recognition,
Road Weather Information Systems,
over-height detection systems,
integrated SCADA systems,
event logging and reporting,
emergency response procedures.

System Scale

The Croatian highway and tunnel traffic management deployments covered:

7 major highways,
more than 1,000 km of highways,
53 tunnels,
more than 70 bridges and viaducts,
25 traffic control centers,
more than 5,000 ITS elements,

The implementation period covered 2001 to 2016.

Integrated Subsystems

The systems integrated multiple traffic, tunnel, safety, and field infrastructure subsystems, including:

Dynamic Message Signs (DMS),
Variable Speed Limit Signs (VSLS),
Lane-Use Control Signals (LUCS),
vehicle detection systems,
emergency roadside telephone systems,
CCTV cameras,
Automatic Video Incident Detection systems,
traffic counters and classifiers,
License Plate Recognition systems,
Road Weather Information Systems,
over-height detection systems,
tunnel sensors,
integrated SCADA systems,
ventilation systems,
water-monitoring systems,
DMS graphics and message control,
user login and operator action logging,
reporting and SQL querying capabilities.

Traffic Management Center Operations

The systems were deployed across multiple Traffic Management Centers and sub-centers.

The platform integrated five main Traffic Management Centers and twenty sub-centers, enabling control takeover according to incident plans.

This supported:

local and segment-specific traffic control,
tunnel-specific traffic management,
traffic control center operator workflows,
control takeover between centers according to incident plans,
full automatic, semi-automatic, or manual operation,
user administration with different user levels,
automatic logging of subsystem statuses and operator actions,
real-time traffic information for operators.

Tunnel Control, SCADA & Safety Operations

Tunnel safety was one of the most important parts of the Croatian deployments.

The systems supported long tunnel operation, SCADA integration, safety procedures, and automatic emergency response plans.

Tunnel-related capabilities included:

tunnel control and supervision,
integrated SCADA capabilities,
ventilation control in case of incidents,
tunnel fire response procedures,
high carbon monoxide level reactions,
water-monitoring and ventilation system integration,
CCTV and AVID integration,
emergency roadside telephone integration,
pedestrian-on-road detection workflows,
debris-on-road response workflows,
wrong-direction driving response workflows,
unauthorized access response workflows.

Incident Management

The systems enabled automatic response to current traffic conditions and incidents.

Traffic management functions included:

identification of current driving conditions in real time,
processing data from deployed sensors,
integration of Automatic Video Incident Detection,
setting speed limits for full sections or specific road segments,
setting DMS graphics and messages,
ICM traffic plans, including re-routing to arterial roads,
automatic emergency response plans,
automatic response plans for dangerous weather conditions,
full automatic, semi-automatic, or manual operation modes.

Automatic emergency response plans supported events including:

accidents in one or multiple lanes,
tunnel fire,
high carbon monoxide levels,
pedestrians on the road,
debris on the road,
unauthorized access,
wrong-direction driving,
dangerous weather conditions,
ventilation control during incidents,
dispatch of information to various agencies.

Delivery Methodology & Testing

The Croatian highway construction campaign created short implementation windows because works had to be suspended during summer tourist seasons.

Telegra addressed this by configuring and factory testing each section before delivery.

The delivery approach included:

system deliveries within short periods of approximately 3–4 months,
parallel implementation with highway construction works,
configuration and factory testing before delivery,
compatibility assurance between new and old sections,
commissioning and testing of ATMS and SCADA systems in long tunnels,
training of new crews in newly built traffic control centers,
technical support during the design phase.

Operational Impact

The Croatian highway and tunnel traffic management deployments supported safer and more efficient motorway operations.

Documented outcomes include:

integrated traffic management across multiple Croatian highway and tunnel environments,
more than 5,000 ITS elements integrated into traffic management systems,
unified GUI for ITS elements, including video,
operation in automatic, semi-automatic, or manual modes,
complete redundancy and control takeover by different TMCs,
real-time traffic information for operators,
improved traffic harmonization and incident response,
optimized maintenance with smaller spare-part stock and lower maintenance cost,
event logging and reporting capabilities,
system readiness for DATEX II integration with European highway operator networks,
support for tunnels operated by topXview™ receiving the Safest European Tunnel Award.

External Tunnel Safety Reference

The Croatian highway and tunnel environment includes internationally recognized tunnel safety references. The Brinje Tunnel on the A1 Zagreb–Split motorway was awarded by FIA / EuroTAP as one of the safest European tunnels in 2007, according to the Croatian Ministry of the Sea, Transport and Infrastructure.

Croatian Ministry reference – Brinje Tunnel European safety recognition

Download Case Study

Download the original PDF case study:

CROATIA - National ITS

Frequently Asked Questions

What is the Croatia Highway & Tunnel Traffic Management Systems case study about?

Is this a single centralized national ATMS platform?

No. This reference represents multiple highway, tunnel, ATMS, TMC, and SCADA deployments across Croatia. The systems supported multiple road sections, tunnels, and traffic control centers, rather than one single centralized nationwide traffic control platform.

However, traffic data from Croatian road sections are integrated into the national traffic data and incident collection system.

Related reference:

National System for Traffic Data and Incident Collection – Croatia

What type of systems did Telegra deliver?

Telegra delivered customized traffic management systems based on the topXview™ Complete ITS Software Platform, including ATMS software, tunnel control, SCADA functionalities integration, incident management, field-device integration, DMS/VSLS/LUCS control, AVID integration, and reporting.

What was the scale of the deployments?

The deployments covered 7 major highways, more than 1,000 km of highways, 53 tunnels, more than 70 bridges and viaducts, 25 traffic control centers, and more than 5,000 ITS elements.

Which subsystems were integrated?

The systems integrated DMS, VSLS, LUCS, vehicle detection, emergency roadside telephones, CCTV, Automatic Video Incident Detection, traffic counters and classifiers, License Plate Recognition, Road Weather Information Systems, over-height detection, tunnel sensors, and integrated SCADA systems.

Does this case study support Telegra’s tunnel control positioning?

Yes. The project demonstrates Telegra’s tunnel control and SCADA capabilities, including tunnel safety workflows, ventilation control, tunnel fire response, high carbon monoxide reactions, AVID integration, emergency response plans, and control center operations.

Does this case study support Telegra’s ATMS and TMC positioning?

Yes. The deployments demonstrate Telegra’s capability to deliver ATMS software, TMC platforms, incident management workflows, operator interfaces, field-device integration, and traffic control center operations for highways and tunnels.