R J Koppa

730 total citations
47 papers, 550 citations indexed

About

R J Koppa is a scholar working on Social Psychology, Safety, Risk, Reliability and Quality and Automotive Engineering. According to data from OpenAlex, R J Koppa has authored 47 papers receiving a total of 550 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Social Psychology, 20 papers in Safety, Risk, Reliability and Quality and 7 papers in Automotive Engineering. Recurrent topics in R J Koppa's work include Traffic and Road Safety (20 papers), Human-Automation Interaction and Safety (15 papers) and Safety Warnings and Signage (12 papers). R J Koppa is often cited by papers focused on Traffic and Road Safety (20 papers), Human-Automation Interaction and Safety (15 papers) and Safety Warnings and Signage (12 papers). R J Koppa collaborates with scholars based in United States. R J Koppa's co-authors include Kay Fitzpatrick, D B Fambro, Jerome J. Congleton, R D Huchingson, Karin Bauer, M D Wooldridge, Patrick Patterson, R A Krammes, I B Anderson and D W Harwood and has published in prestigious journals such as Archives of Physical Medicine and Rehabilitation, SAE technical papers on CD-ROM/SAE technical paper series and The Journal Of Hand Surgery.

In The Last Decade

R J Koppa

43 papers receiving 439 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
R J Koppa United States	12	271	195	134	110	77	47	550
David S. Zuby United States	16	402 1.5×	145 0.7×	153 1.1×	40 0.4×	157 2.0×	54	783
Dot Hs	15	375 1.4×	226 1.2×	250 1.9×	125 1.1×	47 0.6×	52	710
Elizabeth N. Mazzae United States	12	205 0.8×	214 1.1×	161 1.2×	75 0.7×	15 0.2×	39	416
John M. Scanlon United States	14	308 1.1×	122 0.6×	273 2.0×	161 1.5×	93 1.2×	37	634
Lotta Jakobsson Sweden	16	448 1.7×	159 0.8×	153 1.1×	61 0.6×	144 1.9×	78	934
Louis Tijerina United States	20	654 2.4×	858 4.4×	278 2.1×	86 0.8×	26 0.3×	70	1.2k
W. Riley Garrott United States	16	262 1.0×	290 1.5×	664 5.0×	214 1.9×	286 3.7×	70	1.1k
Richard van der Horst Netherlands	10	373 1.4×	349 1.8×	148 1.1×	125 1.1×	21 0.3×	22	578
John R. Bloomfield United States	9	84 0.3×	115 0.6×	44 0.3×	28 0.3×	18 0.2×	44	493
Rafał Jurecki Poland	16	206 0.8×	129 0.7×	477 3.6×	105 1.0×	98 1.3×	88	759

Countries citing papers authored by R J Koppa

Since Specialization

Citations

This map shows the geographic impact of R J Koppa's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by R J Koppa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R J Koppa more than expected).

Fields of papers citing papers by R J Koppa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R J Koppa. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by R J Koppa. The network helps show where R J Koppa may publish in the future.

Co-authorship network of co-authors of R J Koppa

This figure shows the co-authorship network connecting the top 25 collaborators of R J Koppa. A scholar is included among the top collaborators of R J Koppa based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R J Koppa. R J Koppa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Koppa, R J. (2004). AUTOMOTIVE ADAPTIVE EQUIPMENT AND VEHICLE MODIFICATIONS. 2 indexed citations

Manser, Michael P., et al.. (2003). EVALUATION OF SPLASH AND SPRAY SUPPRESSION DEVICES ON LARGE TRUCKS DURING WET WEATHER. 116(1182). U602–U602. 5 indexed citations

Ranney, Thomas A., et al.. (2000). VEHICLE USER CHARACTERISTICS: RESEARCH NEEDS IN THE NEW MILLENNIUM. 1 indexed citations

Fambro, D B, Kay Fitzpatrick, & R J Koppa. (1998). A new stopping sight distance model for use in highway geometric design. Transportation research circular. 6 indexed citations

Fambro, D B, et al.. (1998). Driver Perception–Brake Response in Stopping Sight Distance Situations. Transportation Research Record Journal of the Transportation Research Board. 1628(1). 1–7. 59 indexed citations

Fambro, D B, Kay Fitzpatrick, & R J Koppa. (1997). DETERMINATION OF STOPPING SIGHT DISTANCES. National Cooperative Highway Research Program report. 90 indexed citations

Congleton, Jerome J., et al.. (1996). Defending the Wrist Deviation Test for Carpal Tunnel Syndrome Screening: A Comparison of Vibration Thresholds and Distal Motor Latency. International Journal of Occupational Safety and Ergonomics. 2(4). 315–335. 2 indexed citations

Koppa, R J, et al.. (1996). Positive guidance and older motorists : guidelines for maintenance supervisors. ROSA P. 2 indexed citations

Congleton, Jerome J., et al.. (1995). Effects of pneumatic screwdrivers and workstations on inexperienced and experienced operator performance. International Journal of Industrial Ergonomics. 16(3). 175–189. 5 indexed citations

10.

Koppa, R J, et al.. (1994). Determining Legibility Distance for Highway Signs: Is the within Subject Variability Being Overlooked?. Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 38(14). 907–911. 2 indexed citations

11.

Koppa, R J, et al.. (1993). AGING DRIVER NEEDS IN AN AUTOMOBILE ORIENTED REGION: BRIEF FIELD OF VIEW AND ELDERLY DRIVERS. 1 indexed citations

12.

Grant, Katharyn A., Jerome J. Congleton, & R J Koppa. (1992). Age and weight effects on motor nerve conduction time measurements in an asymptomatic industrial population. Journal of Occupational Rehabilitation. 2(4). 175–182. 1 indexed citations

13.

Koppa, R J, et al.. (1992). A Survey of Activation Importance of Individual Secondary Controls in Modified Vehicles. Assistive Technology. 4(2). 66–69. 2 indexed citations

14.

Koppa, R J. (1990). State of the Art in Automotive Adaptive Equipment. Human Factors The Journal of the Human Factors and Ergonomics Society. 32(4). 439–455. 12 indexed citations

15.

Koppa, R J, et al.. (1989). An ergonomics approach to refrigerator design for the elderly person. Applied Ergonomics. 20(2). 123–130. 5 indexed citations

16.

Koppa, R J, et al.. (1988). Torque Required from Elderly Females to Operate Faucet Handles of Various Shapes. Human Factors The Journal of the Human Factors and Ergonomics Society. 30(3). 339–346. 7 indexed citations

17.

Patterson, Patrick, R J Koppa, Jerome J. Congleton, & R D Huchingson. (1986). Low back stress, muscle usage, and the appearance of transient load movement during manual lifting. International Journal of Industrial Ergonomics. 1(2). 137–143. 9 indexed citations

18.

Koppa, R J. (1985). A Study of Data Entry Keyboards: The 4 x 4 Keypad.. Defense Technical Information Center (DTIC). 2 indexed citations

19.

Dudek, C L, et al.. (1981). HUMAN FACTORS DESIGN OF DYNAMIC VISUAL AND AUDITORY DISPLAYS FOR METROPOLITAN TRAFFIC MANAGEMENT. VOL. 2--DYNAMIC VISUAL DISPLAYS. 19 indexed citations

20.

Dudek, C L, et al.. (1978). HUMAN FACTORS REQUIREMENTS FOR REAL-TIME MOTORIST INFORMATION DISPLAYS. VOLUME 1--DESIGN GUIDE. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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