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Government institution · Sacramento · United States

California Department of Transportation

In research, California Department of Transportation stands highest in Engineering (#3,363 of 11,412 worldwide), Social Sciences (#5,865 of 16,945 worldwide) and Civil and Structural Engineering (#620 of 1,685 worldwide), over all time. Relative to its size it is most specialised in Engineering — Engineering is 3.7× its share of world research.

dot.ca.govROR OpenAlex
World rank, 2022–2025
#25,595
of 28,054 · #14,609 all time
Rank in United States
#3,860
of 4,192
Research works
906
▼ 23% vs 2013–17
Citations
24k
26.5 per fractional work
Top-10% rate
13.1%
record average 16.5%
Open access
18%
world 28%

What is California Department of Transportation known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
EngineeringField #3,363 of 11,412 21.1%562
Social SciencesDomain #5,865 of 16,945 27.2%171
Civil and Structural EngineeringSubfield #620 of 1,685 19.0%280
Physical SciencesDomain #10,572 of 21,541 20.5%690

Each strip is that field’s whole ranked pool, with the notch where California Department of Transportation 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).

What does California Department of Transportation specialise in?

Where its research is concentrated relative to its size: Engineering takes 3.7× the share of its output that it takes of world research.

  1. EngineeringField · 42.6 works3.7×
← 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: 0.20× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.03× its world share, 0 worksBiochemistry, Geneti…Computer Science: 0.39× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 1.88× its world share, 2 worksEarth and Planetary …Energy: 0.78× its world share, 1 worksEnergyEngineering: 3.68× its world share, 43 worksEngineeringEnvironmental Science: 1.25× its world share, 5 worksEnvironmental ScienceMaterials Science: 0.23× its world share, 1 worksMaterials ScienceMathematics: 0.64× its world share, 1 worksMathematicsPhysics and Astronomy: 0.49× its world share, 1 worksPhysics and AstronomyHealth Professions: 0.81× its world share, 2 worksHealth ProfessionsMedicine: 0.17× its world share, 3 worksMedicineVeterinary: 0.53× its world share, 0 worksVeterinaryArts and Humanities: 0.51× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.22× its world share, 0 worksBusiness, Management…Decision Sciences: 0.76× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.47× its world share, 1 worksEconomics, Econometr…Psychology: 0.63× its world share, 2 worksPsychologySocial Sciences: 1.32× its world share, 13 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Engineering, 3.7×. Every wedge is a field page.

Who are the top researchers at California Department of Transportation?

Ranked on the composite score, Anoosh Shamsabadi, Zhongren Wang and Anita Y. Wonder lead among researchers whose main affiliation is California Department of Transportation.

  1. 1 Anoosh Shamsabadi United States · #568,348 worldwide 101 citations · 15 works
  2. 2 Zhongren Wang United States · #1,205,068 worldwide 40 citations · 43 works
  3. 3 Anita Y. Wonder United States · #1,211,046 worldwide 0 citations · 16 works
  4. 4 J L Beaton United States · #1,327,622 worldwide 28 citations · 17 works
  5. 5 R E Davis United States · #1,432,675 worldwide 7 citations · 43 works
  6. 6 R A Forsyth United States · #1,470,643 worldwide 5 citations · 17 works
  7. 7 A E Bacher United States · #1,615,962 worldwide 2 citations · 19 works
All ranked researchers at California Department of Transportation

Which keywords describe research at California Department of Transportation?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Travel Behavior, User Satisfaction, Public Transport, Service Quality, Recycled Materials, Transportation, Defect Detection and Physical Activity.

▲ 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. Deep Learning6▲ 2.1×14 topics
  2. Travel Behavior5▲ 68×2 topics
  3. User Satisfaction5▲ 30×2 topics
  4. Public Transport4▲ 97×1 topic
  5. Service Quality4▲ 21×1 topic
  6. Recycled Materials4▲ 48×2 topics
  7. Transportation4▲ 28×2 topics
  8. Defect Detection4▲ 38×2 topics
  9. Environmental Impacts4▲ 18×3 topics
  10. Physical Activity4▲ 10×3 topics
  11. Active Travel4▲ 71×1 topic
  12. Built Environment4▲ 71×1 topic
  13. Environmental Impact4▲ 2.9×12 topics
  14. Life Cycle Assessment3▲ 16×3 topics
  15. Convolutional Neural Networks3▲ 5.9×4 topics
  16. Image Processing3▲ 9.2×2 topics
  17. Rheology3▲ 20×3 topics
  18. Risk Factors3▲ 3.5×3 topics
  19. Spatial Analysis3▲ 42×2 topics
  20. Crack Detection3▲ 52×1 topic
  21. Liquefaction3▲ 42×2 topics
  22. Pavement3▲ 52×1 topic
  23. Tunnel3▲ 42×2 topics
  24. Ridesharing3▲ 68×1 topic
  25. Shared Autonomous Vehicles3▲ 68×1 topic
  26. Asphalt3▲ 102×1 topic
  27. Bitumen Modification3▲ 102×1 topic
  28. Driver Behavior3▲ 44×2 topics
  29. Intelligent Transportation Systems3▲ 23×2 topics
  30. Traffic Flow3▲ 32×2 topics
  31. Analysis2▲ 34×1 topic
  32. Injury Severity2▲ 40×1 topic
  33. Seismic2▲ 54×1 topic
  34. Traffic Accidents2▲ 71×1 topic
  35. Cooperative Adaptive Cruise Control2▲ 60×1 topic
  36. Microscopic Simulation2▲ 60×1 topic
  37. Construction2▲ 17×3 topics
  38. Geopolymer2▲ 16×2 topics
  39. Fiber Reinforced Concrete2▲ 26×1 topic
  40. Ultra-High Performance Concrete2▲ 26×1 topic

Which research topics does California Department of Transportation publish most on?

By volume in 2022–2025: Transportation Planning and Optimization, Urban Transport and Accessibility, Infrastructure Maintenance and Monitoring and Transportation and Mobility Innovations.

Transportation Planning …4Transportation Planning and Optimization: 4 fractional worksUrban Transport and Acce…4Urban Transport and Accessibility: 4 fractional worksInfrastructure Maintenan…3Infrastructure Maintenance and Monitoring: 3 fractional worksTransportation and Mobil…3Transportation and Mobility Innovations: 3 fractional worksAsphalt Pavement Performance Evaluation: 3 fractional worksTraffic and Road Safety: 2 fractional worksGeotechnical Engineering…2Geotechnical Engineering and Underground Structures: 2 fractional worksTraffic control and management: 2 fractional worksInnovative concrete reinforcement materials: 2 fractional worksConcrete and Cement Materials Research: 2 fractional works
TransportationCivil and Structural EngineeringAutomotive EngineeringSafety, Risk, Reliability and Quality1 others

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

  1. 1 Transportation Planning and Optimization Transportation 4 works
  2. 2 Urban Transport and Accessibility Transportation 4 works
  3. 3 Infrastructure Maintenance and Monitoring Civil and Structural Engineering 3 works
  4. 4 Transportation and Mobility Innovations Automotive Engineering 3 works
  5. 5 Asphalt Pavement Performance Evaluation Civil and Structural Engineering 3 works
  6. 6 Traffic and Road Safety Safety, Risk, Reliability and Quality 2 works
  7. 7 Geotechnical Engineering and Underground Structures Civil and Structural Engineering 2 works
  8. 8 Traffic control and management Control and Systems Engineering 2 works
  9. 9 Innovative concrete reinforcement materials Civil and Structural Engineering 2 works
  10. 10 Concrete and Cement Materials Research Civil and Structural Engineering 2 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 available17.8%not open82.2%

World: 28% of research is openly available.

with international co-authors12.0%domestic only88.0%

World: 19% is written across borders.

How has California Department of Transportation's research output changed?

Output in 2018–2022 was 23% lower 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 Sacramento

All research institutions in Sacramento

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.