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Government institution · San Francisco · United States

San Francisco County Transportation Authority

sfcta.orgROR OpenAlex
Research works
60
▼ 37% vs 2013–17
Citations
1.4k
24.0 per fractional work
Top-10% rate
1.1%
record average 16.5%
Open access
14%
world 28%

Not ranked overall: San Francisco County Transportation Authority is under the volume floor below which an excellence rate is noise. Not ranked is not the same as ranked last.

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.

Biochemistry, Genetics and Molecular Biology: 0.06× its world share, 0 worksBiochemistry, Geneti…Immunology and Microbiology: 3.76× its world share, 0 worksImmunology and Micro…Computer Science: 0.33× its world share, 0 worksComputer ScienceEngineering: 2.67× its world share, 3 worksEngineeringMedicine: 0.29× its world share, 0 worksMedicineArts and Humanities: 1.79× its world share, 0 worksArts and HumanitiesSocial Sciences: 3.35× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Immunology and Microbiology, 3.8×. Every wedge is a field page.

Which keywords describe research at San Francisco County Transportation Authority?

By fractional works in all years, weighted toward what it does more of than the world: Travel Behavior, Public Transport, Service Quality, Physical Activity, Health Impact Assessment, Active Travel, Built Environment and Environmental Impacts.

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

Size is fractional works in all years 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. Travel Behavior11▲ 243×2 topics
  2. Public Transport11▲ 309×1 topic
  3. Service Quality11▲ 103×1 topic
  4. Physical Activity9▲ 38×2 topics
  5. Health Impact Assessment8▲ 236×2 topics
  6. Active Travel8▲ 302×1 topic
  7. Built Environment8▲ 302×1 topic
  8. Environmental Impacts5▲ 41×2 topics
  9. Ridesharing4▲ 196×1 topic
  10. Shared Autonomous Vehicles4▲ 196×1 topic
  11. Spatial Analysis3▲ 59×2 topics
  12. Driver Behavior3▲ 83×2 topics
  13. Injury Severity3▲ 68×1 topic
  14. Traffic Accidents3▲ 135×1 topic
  15. Sustainability2▲ 2.3×4 topics
  16. Deep Learning2▲ 1.87×5 topics
  17. Infrastructure2▲ 31×2 topics
  18. Sustainability Assessment2▲ 33×3 topics
  19. Sustainable Development2▲ 3.1×2 topics
  20. Urban Underground Space2▲ 339×1 topic
  21. Utility Tunnels2▲ 339×1 topic
  22. City Logistics2▲ 144×1 topic
  23. Environmental Impact2▲ 2.2×4 topics
  24. Last Mile Delivery2▲ 144×1 topic
  25. Urban Traffic2▲ 44×2 topics
  26. Intelligent Transportation Systems2▲ 27×2 topics
  27. Traffic Flow2▲ 39×2 topics
  28. Analysis1▲ 21×2 topics
  29. Risk Assessment1▲ 4.0×3 topics
  30. Remote Sensing1▲ 2.0×2 topics
  31. Dynamic Interaction1▲ 27×2 topics
  32. Fuel Consumption1▲ 30×2 topics
  33. Seismic1▲ 34×1 topic
  34. Tunnel1▲ 23×1 topic
  35. Ecomusicology1▲ 85×1 topic
  36. Ethnomusicology1▲ 42×1 topic
  37. Hazard1▲ 30×1 topic
  38. IoT1▲ 7.8×1 topic
  39. Landslide1▲ 30×1 topic
  40. Smart Parking1▲ 119×1 topic

Which research topics does San Francisco County Transportation Authority publish most on?

By volume in 2022–2025: Urban Transport and Accessibility, Transportation Planning and Optimization, Historical Geography and Geographical Thought and Media Studies and Communication.

Urban Transport and Acce…1Urban Transport and Accessibility: 1 fractional worksTransportation Planning …0Transportation Planning and Optimization: 0 fractional worksHistorical Geography and…0Historical Geography and Geographical Thought: 0 fractional worksMedia Studies and Commun…0Media Studies and Communication: 0 fractional worksDigital and Traditional Archives Management: 0 fractional worksCambodian History and Society: 0 fractional worksMilitary, Security, and …0Military, Security, and Education Studies: 0 fractional worksTraffic Prediction and Management Techniques: 0 fractional worksInfrastructure Maintenance and Monitoring: 0 fractional worksTransportation and Mobil…0Transportation and Mobility Innovations: 0 fractional works
TransportationGeography, Planning and DevelopmentCommunicationConservation4 others

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

  1. 1 Urban Transport and Accessibility Transportation 1 works
  2. 2 Transportation Planning and Optimization Transportation 0 works
  3. 3 Historical Geography and Geographical Thought Geography, Planning and Development 0 works
  4. 4 Media Studies and Communication Communication 0 works
  5. 5 Digital and Traditional Archives Management Conservation 0 works
  6. 6 Cambodian History and Society Sociology and Political Science 0 works
  7. 7 Military, Security, and Education Studies Sociology and Political Science 0 works
  8. 8 Traffic Prediction and Management Techniques Building and Construction 0 works
  9. 9 Infrastructure Maintenance and Monitoring Civil and Structural Engineering 0 works
  10. 10 Transportation and Mobility Innovations Automotive Engineering 0 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 available14.1%not open85.9%

World: 28% of research is openly available.

with international co-authors6.4%domestic only93.6%

World: 19% is written across borders.

How has San Francisco County Transportation Authority's research output changed?

Output in 2018–2022 was 37% 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 San Francisco

All research institutions in San Francisco

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.