Perpetual Pavement Design for Turkish Highways: A Sustainable Approach to Long-Life Asphalt Infrastructure
ASCE International Airfield and Highway Pavements Conference, Pavements 2026, Michigan, Amerika Birleşik Devletleri, 28 Haziran - 01 Temmuz 2026, ss.25-36, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1061/9780784487037.003
- Basıldığı Şehir: Michigan
- Basıldığı Ülke: Amerika Birleşik Devletleri
- Sayfa Sayıları: ss.25-36
- Anahtar Kelimeler: Life-cycle cost analysis (LCCA), Mechanistic-empirical design, MnROAD test sections, Perpetual pavements, Service life estimation
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
Perpetual pavements are long-life asphalt structures designed to prevent structural distresses over the analysis period, requiring only periodic surface renewal. Although widely studied internationally, their quantitative structural, functional, and economic benefits under Turkish highway conditions remain unclear. This study presents an integrated framework combining mechanistic-empirical service life estimation with net present value (NPV)-based life-cycle cost analysis (LCCA), using MnROAD hot-mix asphalt sections as a reference. Section-level ESAL accumulation, IRI progression, HMA thickness, and pavement age are used to estimate structural and functional lives, producing a unified service life metric. These service lives inform an NPV-based LCCA comparing conventional and perpetual designs. Results show that thicker, strain-controlled perpetual pavements can offset higher initial costs through longer service lives and fewer structural interventions, reducing cost per ESAL. The study underscores the potential of perpetual pavement concepts for Türkiye and the need for regionally calibrated mechanistic-empirical guidance.