✈️ Airport Runway – Construction Concept

An airport runway is a highly engineered pavement system designed to safely support repeated aircraft movements under heavy loads.

This conceptual Text presents the complete structural and infrastructure layout of a flexible runway pavement, including the pavement layers, shoulders, drainage system, taxiway connection, terminal facilities, cross-section, and construction sequence.

🔹 Runway Dimensions: 3000 m long × 30 m wide
🔹 Shoulders: 7.5 m on each side
🔹 Total Formation Width: 45 m
🔹 Pavement Type: Flexible Pavement
🔹 Design Aircraft: A320 / B737
🔹 Design Life: 20 years
🔹 Cross Slope: 2.5% from centreline toward the edges

🛣️ Pavement Layer System

The runway pavement is constructed in multiple layers to distribute aircraft loads safely to the underlying soil:

1. Asphalt Wearing Course – 50 mm

2. Asphalt Binder Course – 70 mm

3. Asphalt Base Course – 100 mm

4. Crushed Aggregate Base – 250 mm

5. Subbase Course – 300 mm

6. Compacted Subgrade

📏 Total Pavement Thickness: 770 mm

🌧️ Drainage System

Proper drainage is essential for runway safety and pavement durability. Side drainage channels collect and carry away surface runoff, preventing water accumulation and protecting the pavement structure from moisture damage.

🏗️ Main Construction Elements

✔️ Runway pavement
✔️ Asphalt shoulders
✔️ Drainage channels
✔️ Taxiway connection
✔️ Airport terminal and services
✔️ Runway markings and lighting
✔️ Compacted subgrade and granular layers

🔨 Typical Construction Sequence

1️⃣ Clearing and grubbing
2️⃣ Earthworks and subgrade preparation
3️⃣ Subbase and base laying
4️⃣ Asphalt pavement construction
5️⃣ Shoulder construction
6️⃣ Drainage channel construction
7️⃣ Runway marking and lighting installation
8️⃣ Quality control and commissioning

This infographic provides a clear overview of how different civil engineering, pavement engineering, geotechnical, drainage, and airport infrastructure components work together to create a safe and durable airport runway.

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