How do people respond to auditory warning signals? I am working on a literature review of total reaction time to an auditory alert, in a transport context.  All of the literature I can find about perception-response times are in the context of visual obstacles while driving, but in this case I'm interested in perception-response times to auditory-only warning signals (and not specifically drivers).

These are the best sources on PRT I have found so far, all to visual stimuli:
Olson, P.L. &amp; Sivak, M. (1986) Perception-response time to unexpected roadway hazards.   Human Factors, 28, 96-99.
Olson, P., "Driver Perception Response Time," SAE Technical Paper 890731, 1989, doi:10.4271/890731.
Summala, H. (2000). Brake Reaction Times and Driver Behavior Analysis. Transportation Human Factors, 2(3), 217-226.  

What are the equivalents examining perception-response time to auditory stimuli?
Often, very similar phenomena have different names when studied in different modalities, because they are studied by different communities. That's why searching for perception response times + auditory doesn't yield great results (Although I did find [1] this way).

Something else to try, is to pick a highly cited paper that you did find, and then search within paper citing it for relevant terms. I started from Olson's 2000 paper which you mentioned, and searched for "auditory" within citing papers, and quickly found [2] and [3]. 

You can also look for other papers by the same authors - people tend to keep studying similar questions for a while, and often keep using the same methodologies.



[1] Cheng, B., Hashimoto, M., &amp; Suetomi, T. (2002). Analysis of driver response to collision warning during car following. JSAE review, 23(2), 231-237.

[2] Fitch, G. M., Blanco, M., Morgan, J. F., &amp; Wharton, A. E. (2010, September). Driver braking performance to surprise and expected events. In Proceedings of the Human Factors and Ergonomics Society Annual Meeting (Vol. 54, No. 24, pp. 2075-2080). SAGE Publications.

[3] Cao, Y., Mahr, A., Castronovo, S., Theune, M., Stahl, C., &amp; Müller, C. A. (2010, February). Local danger warnings for drivers: The effect of modality and level of assistance on driver reaction. In Proceedings of the 15th international conference on Intelligent user interfaces (pp. 239-248). ACM.