Custom HMI Solutions for Public Transport Systems

Short on Resources or Expertise? We Power Your Next Transport HMI Project  

When in-house teams hit their limits, Promwad steps in. For over 20 years, Europe’s leading transport providers have trusted us to engineer certified HMI subsystems — rugged hardware and embedded software that keep projects on track and fully compliant with your technical specifications and industry standards.

The Problem We Solve

What Slows Down HMI Projects — And How to Accelerate Yours 

Most transport technology providers face the same challenges:  

  • lack of engineers with the right competencies,  
  • limited in-house experience with complex compliance standards,  
  • and pressure to meet strict time-to-market requirements. 

Delays mean lost tenders or contracts, and that is how engineering gaps turn into financial risks. 

At Promwad, we help you avoid these pitfalls by engineering the critical HMI subsystems — hardware modules, embedded software, and certified components — that keep your roadmap on track. 

Train HMI display
Let’s review your HMI bottlenecks and outline a solution. Book a quick call to explore how

Devices & Systems We Design

From Passenger Displays to Ticketing Units — Engineering the Critical HMI Blocks You Need 

We support transport technology providers at any stage of their HMI development — from single modules to complete subsystems. Our teams plug in where you need extra capacity or niche expertise, whether it’s rugged hardware design or embedded software. 

Key HMI building blocks we engineer for public transport:

Passenger displays

On-board LED/LCD destination signs, station platforms, and overview boards for maximum visibility and durability.

Infotainment & multimedia

Energy-efficient TFT content platforms delivering next-stop info, real-time updates, and advertising.

Driver terminals & control interfaces

User-friendly HMI panels for drivers and operators with seamless PIS, CCTV, and TCMS integration.

Ticketing & POS systems

Mobile and stationary solutions supporting RFID, barcode, and contactless payments with accessibility-first design.

Real-time passenger information (PIS)

Integrated platforms for data collection, processing, and distribution across displays, apps, and control centers.

Need a specific module or subsystem? Let’s start your sprint and design it together!

Applications

Trusted Across Buses, Rail, Airports, and Smart Cities 

Our HMI solutions power passenger experience and operational efficiency across all major transport domains: 
Bus & coach

Bus & coach

Reliable destination displays, infotainment, and driver terminals that reduce operational complexity and enhance passenger journeys.

Tram & light rail

Tram & light rail

Platform displays and control panels enabling real-time passenger guidance and seamless integration with networks.

Railways & metro

Railways & metro

Industry-ready TFT/LCD systems and PIS platforms that streamline certification and reduce risks of project delays.

Airports

Airports

Flight information display systems (FIDS), baggage claim monitors, and multimedia kiosks designed for maximum uptime.

Smart cities

Smart cities

Variable message signs (VMS), parking guidance, and urban digital totems delivering real-time clarity to citizens.

Highways & traffic

Highways & traffic

Lane control and tolling displays engineered for visibility, reliability, and safety in extreme outdoor environments.

Let’s adapt our HMI experience in buses, rail, and airports to your project!

Technology & Expertise

Deep Engineering Expertise for Transport HMI Systems 

Promwad  provides the engineering expertise you need to strengthen your HMI projects — from rugged hardware modules to embedded software and compliance support:

Hardware modules & embedded platforms

Railway-grade embedded systems tested for temperature extremes, vibration, humidity, and electrical immunity

Embedded software & connectivity

RTOS, Linux, IoT, 5G, Wi-Fi, and mesh communications enabling real-time data exchange

Subsystem integration & data flow engineering

Passenger information systems with GPS-triggered announcements, CCTV feeds, predictive analytics, and modular POS architectures

Let’s align your specs with industry standards — without delays

Why Promwad

Your Plug-In Engineering Partner, Not Just a Contractor 

We don’t just deliver code or boards — we build your transport-grade systems that last. 
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Targeted expertise, on demand

Whether you extend your in-house team or outsource a turnkey project, we reduce overhead while scaling your engineering capacity. Accelerate your time-to-market with our agile workflows and rapid prototyping!

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Proven experience in transportation

With two decades of expertise, we design industry-compliant solutions. Our engineers have already powered complex embedded systems in automotive, industrial, and public transport domains.

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Strong vendor ecosystem

We partner with leading semiconductor and technology providers (Qualcomm, NXP, and others), giving our clients early access to advanced chipsets, reference designs, and tech support.

20+ years

in embedded & transport engineering

200+

engineering systems delivered across Europe

100%

compliance with industry standards

Let’s Shape Your Next Transport HMI Project — Together!

Discuss your HMI challenge with our engineers — get expert feedback! We will contact you today or the next business day. All submitted information will be kept confidential.