Deployment of Laser Scanning in Rail Projects: Cairo Metro Line 1 & Abu Qir Metro | Presentation

Deployment of Laser Scanning in Rail Projects: Cairo Metro Line 1 & Abu Qir Metro | Presentation

Deployment of Laser Scanning in Rail Projects: Cairo Metro Line 1 & Abu Qir Metro | Presentation

© 2025 Autodesk. All rights reserved.

Design & Make the Future of Rail

Rail Summit 2025

Leveraging Reality Capturing in Rail Projects Cairo Metro Line 1 Rehibition & Abu Qir Metro

Speaker

Shahenda Shokry Head of Digital Delivery/ VDC

Implementation

3

Agenda

Image courtesy of [Name]

01

02

03

Orascom PLC Overview

Case Study 1:

Case Study 2:

Orascom Construction PLC is a leading global

engineering and construction contractor primarily

focused on infrastructure, industrial and high-end

commercial projects in the Middle East, Africa, and the

United States. Orascom Construction also develops

and invests in concessions, owns 50% of BESIX

Group, and holds a building materials, facility

management and equipment services portfolio. The

Group has consistently ranked among the world’s top

contractors and is dual listed in the UAE and Egypt.

Orascom At a Glance

200+ Running Projects

20+ Covered Countries

39 ENR Int’l Contractors Ranking

65K Employees worldwide

Orascom Construction, over the past decade, has built and leveraged on the integration of diverse technologies at different projects stages. From the tender phase to the final completion of a project, we ensure that the latest technological advancements are incorporated. This approach has enabled us to streamline our processes and deliver high-quality projects in a more efficient manner.

Our success has been largely attributed to our dedication to innovation. We continually research innovative methods to incorporate the latest technology into our projects and keep up with continues development.

Orascom Digital Transformation Strategy

Overview - OC Innovative Digital Solutions

7

THE ROADMAP --- Toward a successful Innovative Digital Solutions.

Pre-Contract

Stage

Post-Contract Stage

Engineering Construction Testing &

Commissioning Facility Management

Common Data Environment

VDC/BIM

Augmented Reality

Virtual Reality Reality Capturing Digital Twin

MISSION & GOALS

We aim to integrate and utilize a range of advanced technologies throughout all stages of our projects, from the initial tender phase to final completion, with the aim of achieving the following goals :-

• Enhanced efficiency and productivity.

• Prevent costly site rework and minimize delays. • Foster seamless collaboration and effective engagement among stakeholders (Client, consultants and lower tire sub-

contractors)

• Leverage different operation centers to enhance profitability. • Improve the billing cycle.

• Increased accuracy for exiting site measurements. • Adopt a customer-centric approach by leveraging digital solutions to better meet operators' needs. • Elevate, train and retain skilled professionals in this innovative field.

Case Study 1 Cairo Metro Line 1 Rehibition Project

CAIRO METRO LINE 1 UPGRADING AND RENOVATION The Metro Line 1 project is a comprehensive infrastructure spanning 43.3 kilometers and covering 36 stations, the line has a capacity to serve up to 60,000 passengers, making it a critical element in the region’s transit network.

The EPC (Engineering, Procurement, and Construction) contract, is being led by a consortium comprising Orascom Construction and Colas Rails in a joint venture with Thales. This ambitious project focuses on the extensive renovation and partial demolition of the outdated MEP (Mechanical, Electrical, and Plumbing) systems, which poses a significant challenge due to the complexity of modernizing an active transit line.

Sector: Infrastructure Year: Ongoing Client: National Authority For Tunnels Location: Cairo, Egypt

Role: Partner in a Consortium with Colas Rails and Hitachi

No existing drawings or As-Built

documentation.

Stations are 40+ years old with heavy

modifications and undocumented

changes.

No digital baseline for renovation or

design activities.

The Challenge

 Laser Scanning

o 3D Laser Scanning activates for all the above/under ground stations, interstation's, all the technical rooms

along the full track line including LPS(s), HVS(s), RS(s), and RP(s)

o The result is millions of point cloud points with accuracy ±2 mm

o Tools: Leica / Faro scanners + Recap Pro processing.

 Point Cloud Registration & Alignment

o Merged all point clouds and unified them under the project’s geographic coordinate system.

o Used Recap Pro for clean-up and registration.

o Result: Base point cloud geolocated and ready for modeling.

 Modeling & BIM Development

o Performed LOD 400/500 modeling using Revit.

o Result: A complete and accurate digital model representing the station’s existing conditions.

The Process

Laser scanning: Scan Data Acquisition

Preparation & Planning

Scanning Data

Processing

4. Data analysis and BIM modeling

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Point Cloud Analysis BIM As-built Modeling:

Create a detailed 3D models based on the required LOD by using the appropriate BIM tool (Autodesk Revit),

Feed the model of the BIM model with the required as-built parameters and data.

AL SHOHADAA STATION

AL SHOHADAA STATION

Limited Scanning Hours:

• Scanning permitted only at night (12:00 am to 5:00 am).

Time frame:

• Completion within 5 days

Station Complexity:

• Complex architecture and

layout.

No Existing Layout:

• Lack of pre-existing station

layout.

AL SHOHADAA STATION – CHALLENGES

Preparation & Planning

Scanning Data

Processing BIM

Modelling

AL SHOHADAA STATION – SCAN TO BIM PROCESS

Site Assessment:

• Three site visits to understand the scope, access points, and potential challenges.

Planning:

• Determine the appropriate laser scanner for the

mission (TLS Z+F Scanner).

• Created a plan to ensure full coverage and minimal

occlusions within the 5-day time frame.

• Determined number of scan positions, resolution

requirements, and coverage area.

• Conducted more than 400 colored and non-colored scans with 3-to-6-minutes resolutions.

AL SHOHADAA STATION – PREPARATION & PLANNING

AL SHOHADAA STATION – PREPARATION & PLANNING

TLS Device:

• Setup on stable tripod.

Target Placement:

• Reference targets placed for alignment.

AL SHOHADAA STATION – SCAN DATA PROCESSING

Calibration:

• Ensured scanner was level and oriented.

Data Capture:

• Initiated scanning, captured point

cloud data.

• Moved scanner to different positions

(more than 400 scan).

Al Shohadaa Station – Scan Data Processing

 Data Transfer:

 Transferred raw data to a computer.

 Point Cloud Registration:

 Aligned and merged scans.

 Filtering and Cleaning:

 Removed noise and irrelevant data points.

Al Shohadaa Station – Scan Data Processing

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Al Shohadaa Station – Scan Data Processing

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Al Shohadaa Station – BIM Modeling

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Al Shohadaa Station – BIM Modeling

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El Malek Al Saleh – Aboveground

26Add a footer

Orabi - Underground

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 3D Federated Models (Architecture + MEP + Structure).

 Models Geolocated and linked to the global GIS coordinates.

 Used for Design Validation, Coordination, and As-Built Documentation.

 Each station has now become a Digital Baseline, serving as a starting point for all project

stakeholders.

Output

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 Reduced survey time by 70%.

 Provided unprecedented accuracy in both design and construction.

 Enabled data-driven decision-making based on a reliable digital reality instead of assumptions or

outdated drawings.

 Made all stations digitally analyzable and instantly reviewable on ACC.

Impact

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Track Alignment

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 The objective was to produce a highly accurate Track Alignment As-Built instead of relying on

traditional field measurements.

 The project required an engineering baseline that designers could depend on for track upgrading

and station redesign.

Objective

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 Point Cloud Preparation

o Cleaning & segmentation of the point cloud using ReCap Pro.

o Exported only the rail area (Left & Right Tracks) to minimize noise.

 Import to Civil 3D

o Imported the point cloud into Autodesk Civil 3D.

o Used Extract Feature Line / Polyline tools to perform sampling on the rail heads.

 Extraction of Centerline

o After identifying the rail edges, a centerline was generated to represent the actual track alignment.

o Utilized tools such as “Best Fit Alignment” and “Polyline Regression.”

 Georeferencing

o Linked the alignment to the same geographic coordinates used in the Revit models and ACC.

o Result: A Single Source of Truth for the entire station.

Workflow

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o As-Built Track Alignment completed in Civil 3D.

o Conducted a cross-check with survey control points, showing a deviation of less than ±10 mm.

o Shared the alignment on ACC in DWG and IFC formats to ensure integration with other disciplines

(Architecture / MEP).

Output & Validation

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 Saved a significant amount of time in field surveying activities.

 Obtained a precise alignment that can be confidently used for design.

 Enabled the design team to start developing engineering drawings based on real data, not

assumptions.

 This process marked the first real step in transforming the point cloud into analyzable and design-

ready engineering data.

Impact

35

Case Study 2 Abo Qir Metro Project

The project aims at upgrade and electrify the existing Alexandria-Abou Qir rail line into efficient, safe, and low carbon metro system. Specifically, the project supports the following activities: (1) civil works for the upgrade and electrification of the metro line including a depot; (2) metro systems including signaling, telecommunication, centralized control system, and safety measures; (3) rolling stock to be operated on the metro system; and (4) project management and construction supervision. There will be 20 modern metro stations along the 22 km corridor, 16 km of which will be elevated.

Case Study 2: Abo Qir Metro Project

Sect or : I nf rastructure

Year : Ongoi ng

Cli ent: National Author ity For Tunnel s Locati on: Cai ro, Egypt

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Scope

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Project Activities: Laser Scanning Data Processing

• Comprehensive point cloud data processing is

done to prepare raw data to be ready for the as-

built 3D model.

• Point cloud data processing started in parallel with laser scanning process with a total of 8

working hours per day.

Pointcloud registration

Project Activities: Laser Scanning Data Processing

Point cloud data after processing

Project Activities: As-built 3D Model VS Point Cloud Data

As-built model VS Point Cloud Data

Project Activities: As-built 3D Model

Samples from 3D Model

DTM, DSM & Contour Map

These were the key deliverables of the project as they are considered the very first step of

the new railway design from which the design team can get the accurate as built terrain

surface topography representation.

DTM DSM Contour Map

DSM

Samples from Digital Surface Model

A Digital Surface Model (DSM) is a digital representation for the registered point cloud

after removing any moving object as human beings, vehicles..,etc. or any unneeded noise,

leaving only all road features above bare earth.

DTM

A Digital Terrain Model (DTM) is a digital representation of the terrain or ground surface

of a specific area or location. It is a three-dimensional model that provides information

about the elevation, slope, and other topographic features of the terrain.

Samples from Digital Terrain Model

Contour Map

Topographic map in which the topography of the land surface is shown by contour lines,

the relative spacing of the lines indicating the relative slope of the surface.

Samples from Counter Map

Project Activities: GPR Detection

Using LMX200 GPR system with an external Trimble GPS system and relying on a fixed control

point provided by Orascom Construction, The 3D scanning of the underground utilities was

implemented along the rail from Al-Montazah station to Al-Mandara station resulted in detecting

electricity cables & water pipelines in the infrastructure.

The Survey Path LocationGPR

Project Activities: GPR Detection

The Pipe and its Corresponding GPR Signature

© 2025 Autodesk. All rights reserved.

 Add date

here

Shahenda Shokry

Thank you!​ Sahhenda.shokry@orascom.com

www.orascom.com

mailto:Sahhenda.shokry@orascom.com

Slide 1 Slide 2 Slide 3: Speaker Slide 4 Slide 5 Slide 6 Slide 7: Overview - OC Innovative Digital Solutions Slide 8 Slide 9: CAIRO METRO LINE 1 UPGRADING AND RENOVATION Slide 10: The Challenge Slide 11: The Process Slide 12: Laser scanning: Scan Data Acquisition Slide 13: 4. Data analysis and BIM modeling Slide 14 Slide 15 Slide 16 Slide 17 Slide 18 Slide 19 Slide 20 Slide 21: Al Shohadaa Station – Scan Data Processing Slide 22: Al Shohadaa Station – Scan Data Processing Slide 23: Al Shohadaa Station – Scan Data Processing Slide 24: Al Shohadaa Station – BIM Modeling Slide 25: Al Shohadaa Station – BIM Modeling Slide 26: El Malek Al Saleh – Aboveground Slide 27: Orabi - Underground Slide 28: Output Slide 29: Impact Slide 30: Track Alignment Slide 31 Slide 32: Objective Slide 33: Workflow Slide 34: Output & Validation Slide 35: Impact Slide 36 Slide 37: Case Study 2: Abo Qir Metro Project Slide 38: Scope Slide 39 Slide 40 Slide 41 Slide 42 Slide 43 Slide 44 Slide 45 Slide 46 Slide 47 Slide 48 Slide 49


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