Science Explorer Interactive view Map
Government institution · Linköping · Sweden

Swedish National Road and Transport Research Institute

In research, Swedish National Road and Transport Research Institute stands highest in Engineering (#4,757 of 6,636 worldwide), Social Sciences (#8,259 of 10,521 worldwide) and Physical Sciences (#10,706 of 12,888 worldwide), 2022–2025. Relative to its size it is most specialised in Transportation, Automotive Engineering and Civil and Structural Engineering — Transportation is 34.2× its share of world research.

vti.seROR OpenAlex
World rank, 2022–2025
#19,660
of 28,054 · #19,170 all time
Rank in Sweden
#96
of 125
Research works
811
▲ 55% vs 2013–17
Citations
22k
26.8 per fractional work
Top-10% rate
21.1%
record average 16.5%
Open access
54%
world 28%

What is Swedish National Road and Transport Research Institute known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
EngineeringField #4,757 of 6,636 16.5%92 #5891
Social SciencesDomain #8,259 of 10,521 25.5%68 #4910
Physical SciencesDomain #10,706 of 12,888 18.6%124 #15140

Each strip is that field’s whole ranked pool, with the notch where Swedish National Road and Transport Research Institute sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Engineering#5,891 #4,757
  2. Social Sciences#4,910 #8,259
  3. Physical Sciences#15,140 #10,706
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Swedish National Road and Transport Research Institute specialise in?

Where its research is concentrated relative to its size: Transportation takes 34.2× the share of its output that it takes of world research.

  1. TransportationSubfield · 23.6 works34×
  2. Automotive EngineeringSubfield · 22.1 works20×
  3. Civil and Structural EngineeringSubfield · 21.6 works8.8×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.10× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.03× its world share, 0 worksBiochemistry, Geneti…Neuroscience: 0.26× its world share, 1 worksNeuroscienceChemical Engineering: 0.15× its world share, 0 worksChemical EngineeringChemistry: 0.09× its world share, 0 worksChemistryComputer Science: 0.38× its world share, 6 worksComputer ScienceEarth and Planetary Sciences: 0.53× its world share, 2 worksEarth and Planetary …Energy: 1.55× its world share, 3 worksEnergyEngineering: 2.96× its world share, 92 worksEngineeringEnvironmental Science: 1.95× its world share, 20 worksEnvironmental ScienceMaterials Science: 0.09× its world share, 1 worksMaterials ScienceMathematics: 0.10× its world share, 0 worksMathematicsPhysics and Astronomy: 0.04× its world share, 0 worksPhysics and AstronomyHealth Professions: 1.22× its world share, 7 worksHealth ProfessionsMedicine: 0.16× its world share, 6 worksMedicineBusiness, Management and Accounting: 1.54× its world share, 10 worksBusiness, Management…Decision Sciences: 2.63× its world share, 5 worksDecision SciencesEconomics, Econometrics and Finance: 0.92× its world share, 4 worksEconomics, Econometr…Psychology: 2.50× its world share, 16 worksPsychologySocial Sciences: 1.23× its world share, 32 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Engineering, 3.0×. Every wedge is a field page.

Who are the top researchers at Swedish National Road and Transport Research Institute?

Ranked on the composite score, Mattias Hjort, Sonja Forward and Christer Ahlström lead among researchers whose main affiliation is Swedish National Road and Transport Research Institute.

  1. 1 Mattias Hjort Sweden · #133,275 worldwide 154 citations · 30 works
  2. 2 Sonja Forward Sweden · #179,267 worldwide 104 citations · 38 works
  3. 3 Christer Ahlström Sweden · #344,202 worldwide 143 citations · 35 works
  4. 4 Johan Olstam Sweden · #360,114 worldwide 77 citations · 27 works
  5. 5 Katja Kircher Sweden · #545,219 worldwide 75 citations · 22 works
  6. 6 Anna Anund Sweden · #630,705 worldwide 34 citations · 37 works
  7. 7 Jan Törnros Sweden · #660,718 worldwide 46 citations · 17 works
  8. 8 Karolina Isaksson Sweden · #683,446 worldwide 48 citations · 20 works
  9. 9 Abubeker Ahmed Sweden · #703,722 worldwide 16 citations · 17 works
  10. 10 Ulf Sandberg Sweden · #704,204 worldwide 70 citations · 55 works
All ranked researchers at Swedish National Road and Transport Research Institute

Which keywords describe research at Swedish National Road and Transport Research Institute?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Driver Behavior, Physical Activity, Health Impact Assessment, Transportation, Autonomous Vehicles, Accessibility, Active Travel and Built Environment.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Driver Behavior20▲ 121×2 topics
  2. Physical Activity14▲ 14×4 topics
  3. Health Impact Assessment14▲ 78×2 topics
  4. Autonomous Vehicles14▲ 31×4 topics
  5. Transportation14▲ 36×2 topics
  6. Accessibility14▲ 74×2 topics
  7. Active Travel13▲ 93×1 topic
  8. Built Environment13▲ 93×1 topic
  9. Spatial Analysis12▲ 62×2 topics
  10. Risk Factors11▲ 5.0×2 topics
  11. Injury Severity11▲ 67×1 topic
  12. Traffic Accidents11▲ 120×1 topic
  13. Environmental Impact11▲ 3.1×17 topics
  14. Life Cycle Assessment11▲ 19×5 topics
  15. Sustainability11▲ 2.1×21 topics
  16. Environmental Impacts10▲ 18×3 topics
  17. Travel Behavior10▲ 51×2 topics
  18. User Satisfaction10▲ 25×3 topics
  19. Service Quality10▲ 17×3 topics
  20. Public Transport9▲ 77×2 topics
  21. Urban Mobility9▲ 77×2 topics
  22. Congestion Pricing9▲ 79×1 topic
  23. Route Choice9▲ 79×1 topic
  24. Fuel Consumption9▲ 60×2 topics
  25. Trust9▲ 15×3 topics
  26. Human Factors9▲ 55×2 topics
  27. Automation8▲ 60×1 topic
  28. Driver Distraction8▲ 106×1 topic
  29. Electric Vehicles8▲ 13×4 topics
  30. CO2 Emissions7▲ 19×2 topics
  31. Eco-Driving7▲ 68×1 topic
  32. Vehicle Emissions7▲ 68×1 topic
  33. Intelligent Transportation Systems7▲ 22×3 topics
  34. Supply Chain Management7▲ 3.5×8 topics
  35. Recycled Materials6▲ 28×2 topics
  36. Asphalt6▲ 93×1 topic
  37. Bitumen Modification6▲ 93×1 topic
  38. Ridesharing6▲ 54×1 topic
  39. Shared Autonomous Vehicles6▲ 54×1 topic
  40. Traffic Flow6▲ 27×2 topics

Which research topics does Swedish National Road and Transport Research Institute publish most on?

By volume in 2022–2025: Urban Transport and Accessibility, Traffic and Road Safety, Transportation Planning and Optimization and Human-Automation Interaction and Safety.

Urban Transport and Accessibility: 13 fractional worksTraffic and Road Safety: 11 fractional worksTransportation Planning …9Transportation Planning and Optimization: 9 fractional worksHuman-Automation Interac…8Human-Automation Interaction and Safety: 8 fractional worksVehicle emissions and performance: 7 fractional worksAsphalt Pavement Performance Evaluation: 6 fractional worksTransportation and Mobil…6Transportation and Mobility Innovations: 6 fractional worksInfrastructure Maintenance and Monitoring: 4 fractional worksTraffic control and management: 4 fractional worksElectric Vehicles and Infrastructure: 3 fractional works
TransportationSafety, Risk, Reliability and QualitySocial PsychologyAutomotive Engineering3 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Urban Transport and Accessibility Transportation 13 works
  2. 2 Traffic and Road Safety Safety, Risk, Reliability and Quality 11 works
  3. 3 Transportation Planning and Optimization Transportation 9 works
  4. 4 Human-Automation Interaction and Safety Social Psychology 8 works
  5. 5 Vehicle emissions and performance Automotive Engineering 7 works
  6. 6 Asphalt Pavement Performance Evaluation Civil and Structural Engineering 6 works
  7. 7 Transportation and Mobility Innovations Automotive Engineering 6 works
  8. 8 Infrastructure Maintenance and Monitoring Civil and Structural Engineering 4 works
  9. 9 Traffic control and management Control and Systems Engineering 4 works
  10. 10 Electric Vehicles and Infrastructure Electrical and Electronic Engineering 3 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available54.2%not open45.8%

World: 28% of research is openly available.

with international co-authors29.9%domestic only70.1%

World: 19% is written across borders.

How has Swedish National Road and Transport Research Institute's research output changed?

Output in 2018–2022 was 55% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Linköping

All research institutions in Linköping

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.