This establishment ever since  its  inception  prepared  a  great series of studies, designs and  other  investigations,  analyses, expert  opinions  in  the  fields  of  transportation,   geology, geotechnics,  water  engineering,  environmental  protection,  as follows:

• more than 300 techno-economic transport studies pertaining  to road-network development, transport sectorial  studies  within the framework of spatial plans, transport  studies  for  urban requirements, studies regarding transport models  and  traffic management, methodological studies, rule books,  instructions,  et al.;
• more than 200 scientific-research studies  in  the  fields  of    transport  and  traffic  engineering,  geotechnics,   geology,    pavement,   construction   techniques,   techniques   of   the    production and processing of building materials, environmental protection   along    with    various    studies,    analyses, expertise  within   the   scope   of   activities   of   this establishment;
• more than 4000 diverse projects of roads and  urban  transport facilities;
• more than 100 general designs with supporting studies;
• a series of projects in the country and abroad:
•  roads
  motorways approximately 5000 km,
  main, regional and local roads and bypasses of  towns at approximately 14000 km,
  bridges
  around 4500 of various structures and spans,
  tunnels
  approx.150,
  pavement structures
  on approximately 500 km of motorways,
  on approximately 1500 km of newly built roads,
  on approximately 2000 km of roads-rehabilitation,
  airport runways
  on 30 airports,
  urban transport facilities
  in more than 50 cities and townships,
  environment protection
  more than 150 projects and studies
• conducted technical-technological  supervision  on  more  than 30000 km of roads of various ranks;
• defined geotechnical  requirements  for  the  construction  of    approximately 2000 km of motorways and 5000  km  of  main  and    regional roads
• conducted a series of geotechnical  investigations  meant  for    the construction of road structures, tunnels (more  than  100)    and   bridges   (more   than   700),   numerous   geotechnical investigations as regards repair requirements, preparation  of engineering designs for repairs  of  unstable  terrains  being the known land slips "Umka", "Duboko", "Razanj",  "Begaljica", at the bridge "Sloboda" over Danube river, "Lapisnica" et al.
• preparation of geotechnical basic data meant for planning and construction of various structures, more  than  500  locations and structures and for special-purpose facilities  being  more than 100 units, etc.
• quality control of materials carried out on approximately 5000 km of main and regional road networks and on other engineering structures
• investigations, research and issuance of test certificates for    building materials
• preparation of data base for roads and street network for more than 30000 km of main and regional roads, around 10000  km  of local roads, and approximately 6000 km of  street  network  in more than 20 cities.

In addition to  jobs  carried  out  in  Yugoslavia,  The  Highway Institute was involved in various projects in Libya, Iraq, Egypt, Russia, Algeria, Gabon, Congo, Angola, Zimbabwe,  Kenya,  Zambia, Malaysia, Jordan and elsewhere.