A study published in Scientific Reports examined the effects of multiple compaction on lateritic soil. The research found that these soils, characterized by dark brown or reddish-brown hues due to iron oxides, are generally unsuitable for construction in their natural state. However, the study highlighted that specific treatment methods, such as multiple compaction, can enhance their geotechnical properties, making them more suitable for construction purposes.

I would like to see that paper in Scientific Reports, though I have a suspicion that it wouldn't be very scientific. Lateritic soils have self-cementing properties and are excellent, and often the only suitable construction materials in certain areas. So much so that they have been recognized as special category construction materials even suitable for use as pavement materials in Western Australia's Dept of Main Roads. They also often respond very well to modification with lime additive. You may want to check out CIRIA Special Publication 47: Laterite in road pavements. Provided one familiarises oneself with the laterite profile, in which strength reversal is a norm,appropriate foundation parameters can be assigned.