Topics
220 topics in 28 categories, grouped into 18 research areas. Counts are distinct papers — a paper carries about two topics, so the areas overlap and their counts do not sum to the corpus.
Know the name already? The flat list of all 220 topics, sorted by paper count. Looking for how a study was done rather than what it was about? How driving gets studied.
Populations & Road Users
7112 papers · 4 categories
- Age & Experience 2653 papers · 7 topics novice drivers · older drivers · mci dementia driving · learner drivers · age related perceptual decline
- Vulnerable Road Users 2444 papers · 7 topics pedestrian behavior perception · vru facing ehmi · driver vru interaction · vru crash typology · cyclist safety
- Commercial & Heavy Vehicle Drivers 1675 papers · 4 topics truck driver fatigue · bus coach · last mile delivery · fleet safety
- Two-Wheeler & Motorcycle Drivers 602 papers · 5 topics motorcycle crash typology · motorcyclist skill · motorcycle conspicuity · helmet protective · motorcycle handling
Overlaps: Training, Education & Intervention (852 papers with age_experience, 8.02x expected; filed under Training, Education & Countermeasures)
In-Vehicle Tech & HMI
4401 papers · 3 categories
- Human-Machine Interaction 2258 papers · 9 topics hud ar windshield · haptic feedback · feedback modes · control interfaces · auditory warnings
- In-Vehicle Technology 1431 papers · 6 topics mobile phones · in vehicle displays · generative ai voice assistants · nav systems · infotainment
- General Human Factors (Cross-Domain) 1006 papers · 2 topics situation awareness theory · human error taxonomy
Overlaps: Driver Distraction (630 papers with in_vehicle_technology, 6.03x expected; filed under Attention, Distraction & Workload) · Driver State Monitoring (DMS) (no admitted pair links DMS to hmi or in_vehicle_technology — that absence is why it moved to its own area in v4. Kept as a guest because a driver monitor IS in-vehicle hardware, so a reader browsing in-vehicle technology should find it.; filed under Driver State Monitoring) · Policy & Enforcement (301 papers with in_vehicle_technology, 5.17x expected; filed under Policy, Law & Enforcement)
Attention, Distraction & Workload
13088 papers · 2 categories
- Cognitive Workload 9748 papers · 7 topics situational awareness · neuro workload indices · workload measurement · mental demand · attention allocation
- Driver Distraction 4570 papers · 8 topics visual · temporal · manual · mind wandering · external distraction
Overlaps: Visual Perception & Hazard Perception in Driving (716 papers with distraction, 2.20x expected; filed under Perception & Hazard Perception) · Driver State Monitoring (DMS) (231 papers with cognitive_workload, 1.58x expected; filed under Driver State Monitoring)
Crash Causation & Forensic Human Factors
2700 papers · 2 categories
- Crash Causation & Contributing Factors 2036 papers · 5 topics naturalistic crash near crash · pre crash contributing factors · causation analyses · crash typology · in depth crash investigation
- Forensic Human Factors 734 papers · 5 topics visibility analysis litigation · perception reaction time · crash reconstruction hf · conspicuity in litigation · expert witness methodology
Overlaps: Crash Statistics & Epidemiology (936 papers with crash_causation_factors, 4.74x expected; filed under Crash Statistics & Epidemiology) · Visibility & Lighting (214 papers with forensic_human_factors, 10.05x — strongest pair in the corpus; filed under Road Environment, Weather & Visibility)
Road Environment, Weather & Visibility
6926 papers · 2 categories
- Environment, Road & Weather 5641 papers · 11 topics traffic density · rail grade crossings · perceptual countermeasures · signage environment · urban rural setting
- Visibility & Lighting 1816 papers · 11 topics roadway lighting effects · emergency work zone conspicuity · sign visibility legibility · adaptive driving beam · disability glare
Overlaps: Vulnerable Road Users (sub-threshold (lift 1.46) — kept by domain judgement: pedestrian and cyclist exposure to road and weather conditions is a real question readers bring to this area, and the rule would drop it.; filed under Populations & Road Users)
Crash Statistics & Epidemiology
6376 papers · 2 categories
- Crash Statistics & Epidemiology 6071 papers · 7 topics incidence prevalence · telematics crash prediction · demographic disparities · exposure measurement · comparative international
- Post-Crash Behavior & Response 353 papers · 4 topics driver post crash behavior · secondary collisions · evacuation egress · post crash care delays
Overlaps: Crash Causation & Contributing Factors (936 papers, 4.74x expected; filed under Crash Causation & Forensic Human Factors) · Two-Wheeler & Motorcycle Drivers (146 papers with crash_statistics_epidemiology, 2.50x expected; filed under Populations & Road Users)
Driver Psychology & Individual Differences
5322 papers · 2 categories
- Individual Differences (Driver Population) 3416 papers · 5 topics cognitive capacity variation · sex gender · cultural cross national · sensory abilities · personality driving
- Driver Psychology, Style & Traits 2544 papers · 10 topics stress driving · passenger effects · risk taking · dbq psychometrics · sensation seeking
Overlaps: Age & Experience (878 papers with driver_individual_differences, 6.06x expected; filed under Populations & Road Users)
Cognitive Psychology Foundations
9617 papers · 1 category
- Cognitive Psychology Foundations 9617 papers · 23 topics attention selective divided · executive function · inattentional change blindness · visual search · working memory
Overlaps: Age & Experience (sub-threshold at category grain after the 2026-08-11 re-parents. Kept because cognitive aging is the busiest bridge between the upstream science and the driving-applied areas (foundations.aging exists as its own area child).; filed under Populations & Road Users)
Automation & ADAS
8349 papers · 1 category
- Vehicle Automation & ADAS 8349 papers · 16 topics automation · automation surprise · acceptance adoption · driverless ads · ehmi external hmi
Overlaps: Cognitive Workload (618 papers with vehicle_automation_adas, 1.95x expected; filed under Attention, Distraction & Workload) · Driver State Monitoring (DMS) (sub-threshold against vehicle_automation_adas directly, but engagement monitoring under automation is a live question and DMS is one click away.; filed under Driver State Monitoring)
Driver Behavior at the Wheel
4759 papers · 1 category
- Driver Behavior 4759 papers · 10 topics steering pattern · speed choice · following distance · eco driving · lane positioning
Overlaps: Environment, Road & Weather (sub-threshold (lift 1.72). CORRECTED 2026-08-11: at the stated n>=25/lift>=2.0 cut driver_behavior has ZERO qualifying category partners, not one. This edge is kept curated so the area is not a cul-de-sac at category grain.; filed under Road Environment, Weather & Visibility)
Driver State Monitoring
6400 papers · 1 category
- Driver State Monitoring (DMS) 6400 papers · 6 topics drowsiness detection algorithms · distraction detection algorithms · gaze based attention detection · dms validation · alcohol detection systems
Overlaps: Fatigue & Alertness (1,510 papers, 5.00x expected — the strongest pair either category has; filed under Fatigue & Sleepiness) · Driver Distraction (1,128 papers, 2.41x expected; filed under Attention, Distraction & Workload) · Commercial & Heavy Vehicle Drivers (538 papers, 3.14x expected; filed under Populations & Road Users)
Fatigue & Sleepiness
2952 papers · 1 category
- Fatigue & Alertness 2952 papers · 7 topics drowsiness · vigilance · sleep deprivation · time on task · microsleep
Overlaps: Driver State Monitoring (DMS) (1,510 papers, 5.00x expected — the strongest pair either category has; filed under Driver State Monitoring) · Commercial & Heavy Vehicle Drivers (716 papers with fatigue, 8.99x expected; filed under Populations & Road Users)
Impairment
2261 papers · 1 category
- Driver Impairment 2261 papers · 11 topics cognitive impairment · alcohol · polydrug · illicit drugs · drowsy as impairment
Overlaps: Age & Experience (498 papers, 4.33x expected; filed under Populations & Road Users)
Training, Education & Countermeasures
2472 papers · 1 category
- Training, Education & Intervention 2472 papers · 9 topics in vehicle coaching · older driver retraining · driver education effectiveness · public messaging · hazard perception training
Overlaps: Age & Experience (852 papers, 8.02x expected; filed under Populations & Road Users) · Policy & Enforcement (383 papers, 3.99x expected; filed under Policy, Law & Enforcement)
How Driving Gets Studied
1685 papers · 1 category
- Simulator Methodology & Validity 1685 papers · 3 topics simulator validity fidelity · simulator training transfer · simulator sickness
Overlaps: Training, Education & Intervention (211 papers, 3.13x expected; filed under Training, Education & Countermeasures)
Occupant Protection
836 papers · 1 category
- Occupant Protection Behavior 836 papers · 2 topics seat belt use · child passenger safety
Overlaps: Training, Education & Intervention (105 papers with occupant_protection, 3.18x expected; filed under Training, Education & Countermeasures)
Perception & Hazard Perception
4697 papers · 1 category
- Visual Perception & Hazard Perception in Driving 4697 papers · 11 topics useful field of view · anticipation · mental model of traffic · peripheral attention · eye movements scanning
Overlaps: Visibility & Lighting (181 papers with forensic_human_factors at 3.29x clears the bar, but the direct visual_perception_hazard_perception x visibility_lighting pair does NOT (below n>=25/lift>=2.0). Kept by domain judgement: what a driver could see and how well it was lit are one question, and this area is where a reader looks for it.; filed under Road Environment, Weather & Visibility)
Policy, Law & Enforcement
2549 papers · 1 category
- Policy & Enforcement 2549 papers · 9 topics regulatory evaluation · dui enforcement · traffic safety culture · speed management · distraction laws
Overlaps: Training, Education & Intervention (383 papers, 3.99x expected; filed under Training, Education & Countermeasures) · In-Vehicle Technology (301 papers, 5.50x expected; filed under In-Vehicle Tech & HMI)
Some strongly-related categories sit in different areas — any grouping severs something. The pairs this one severed, with their numbers.