The Marmaray project connecting Halkali to Gebze through Istanbul is commissioned today with a ceremony.
The engineering works have restarted at Marmaray after three years.
Annual ridership in suburban trains in Turkey reached to 160 mn in 2015.
Construction works at Marmaray, which almost stopped for last 2 years, had restarted, but is progressing very slowly.
A new schedule is announced about suburban lines of Marmaray, where construction works had stopped since 2014.
The passengers using suburban services in Turkey’s three biggest cities of Turkey had exceeded 130 million last year.