Main Design of Interlocking System for Stations: Ostružnja, Snjegotina, Jošavka,Čelinac,Vrbanja, B.Luka, Ševarlije...

Investor: Railways of RS AD Doboj

Year: 2010

Main Design for Overhaul Railway Rehabilitation M.Kolo-Mojkovac, Station Mojkovac and Mijatovo Kolo, L=8,16km, as well as Trebaljevo-Kolašin and Station Kolašin, L=9,5 km

Investor: Railways of Montenegro

Year: 2009

Main Design for Overhaul Railway Rehabilitation Šamac-Doboj, km 21+800 -84+100, L=62,3 km

Investor: Delegation of EC – C.Lotti & Asociatti

Year: 2007//2008

Main Design for Overhaul Railway Rehabilitation KONJIC-ČAPLJINA-STATE BORDER

Investor: European Commission in B&H

Year: 2007

Main Design for Overhaul Railway Rehabilitation S.KOSTAJNICA-JOŠAVKA

Investor: European Commission in B&H

Year: 2007