This article was automatically translated from the original Turkish version.
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The Bolu Mountain Pass, implemented as part of the important project, is a critical component of Türkiye’s road transport network along the Edirne – İstanbul – Ankara axis and serves national and international transportation. The Bolu Mountain Pass, with a total length of 27.1 kilometers, provides connectivity through 2x3 lane highway and 2x2 lane link roads. Tunnel has significantly alleviated transportation challenges posed by difficult geographical conditions, enhancing traffic safety and reducing travel time to ensure economic benefit.
Location and Scope of the Project
History and Construction Process
Initiation and Development
Challenges Encountered
Inauguration Ceremony
Technical Specifications and Structural Details
Length and Structural Features
Electromechanical and Control Systems
Security and Emergency Management
Ventilation and Fire Prevention
Evacuation and Alarm Systems
Fire Detection and Suppression
Traffic and Monitoring Systems
Closed-Circuit Television System
Traffic Control and Information
Energy and Lighting
Energy Systems
Tunnel Lighting
Measures Against Environmental Factors
Frost and Fog Prevention
Recent Developments and Improvements
Tunnel Extension Works
Additional Structural Reinforcements