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Railway Signaling Drawing Automation for Safety Systems

Automating the generation of complex railway signaling and layout drawings to support large-scale safety-critical rail projects.

Client

Kernex Microsystems

Workflow Type

Drawing Automation

Primary Output

AutoCAD signaling layouts

Industry

Railway Safety & Infrastructure

The Problem

Kernex Microsystems, a pioneer in railway safety systems, relied on manual AutoCAD drafting to produce complex railway signaling and layout drawings. Creating layouts for tracks, turnouts, blocks, and signaling components was time-consuming and error-prone, limiting scalability and making it difficult to meet growing project demands.

Constraints & Challenges

  • Complexity: Automating the generation of intricate railway signaling layouts.
  • Standardization: Standardizing drawings for tracks, turnouts, blocks, and tags.
  • Data Conversion: Converting structured engineering data into accurate CAD drawings.
  • Scale: Supporting large, interconnected signaling projects with multiple drawings.
  • Safety: Reducing manual drafting without compromising accuracy or compliance.

Our Approach

FDES developed a custom AutoCAD plug-in tailored to Kernex Microsystems’ engineering workflows.

Railway Signaling Automation Output
  • Use structured Excel templates as the primary input system.
  • Parse signaling data programmatically within AutoCAD.
  • Generate tracks, turnouts, blocks, and tags automatically.
  • Introduce custom AutoCAD commands to control and validate generation.
  • Support multi-drawing workflows from a single dataset.

What Was Automated

Automatic generation of railway track layouts
Creation of turnouts, blocks, and signaling components
Placement of tags, labels, and annotations with correct scaling
Parsing of structured Excel input data
Multi-drawing generation for interconnected railway systems
Validation to ensure error-free and consistent outputs

Impact

Time Savings

Reduced drawing generation from 3-5 days to 2-4 hours per signaling layout.

Safety Critical

Zero safety-critical drafting errors — automated validation ensures compliance with railway signaling standards.

Standardization

100% consistent deliverables across 50+ station layouts within the same project.

Scalability

Enabled a 4-person team to handle drawing volumes previously requiring 12+ engineers.

Before vs After

Before Automation

  • 3–5 days per signaling layout drawing
  • Manual placement of signal symbols and annotations
  • Revision loops due to drafting inconsistencies
  • Knowledge locked in senior drafter's head

After Automation

  • 2–4 hours per complete signaling layout
  • Automated symbol placement from rule tables
  • First-time-right drawings — zero revision loops
  • Engineering logic captured in reusable system
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