- Pre-feasibility study of a 3rd Danube Crossing at Silistra – Călăraşi
- Feasibility Study Hemus Motorway Concession
- Electronic Toll Collection Framework Bulgaria
- Survey of current and medium-term road traffic forecast in Plovdiv city area
- Harmonization of the Bulgarian legislation in the field of road infrastructure with Directive 2006/38/EC amending Directive 1999/62/EC on the charging of heavy goods vehicles for the use of certain infrastructure
- European Roadway Design Handbook – Powered Two Wheelers Friendly Road Design in Europe
- Introduction of Road User Charges (Vignette System) since January 2004 to finance the infrastructure
- Study and assessment of the scope and possibilities for introducing road charges on use of the National Road Network and financial and economy model for the charges calculation
- Provision of Up-graded Testing Facilities for Commercial Vehicles
- Road User Charges Study
- Study and Assessment of the Economic and Financial Efficiency for Construction of Trakia and Cherno More Motorways as part of Trans-European Corridor 8
- Preparation of model for a concession contract and analysis of the actual and legal situation for realisation and financing of Motorway Maritza project
- Legal, Financial, Economic, Technical, Environment and Social analyses for announcement of the Concession for Motorway Kalotina – Sofia – Yablanitza
- Updating of Transport Infrastructure Costs in acceding countries
- Legal, Financial, Economic, Technical, Environment and Social analyses for announcement of the Concession for Maritza Motorway section Orizovo – Kapitan Andreevo
- Study for additional Border Crossings between Bulgaria and Greece
