This road data analysis device (100) includes: a traveling record calculation unit (131) which calculates, from speed information for each prescribed time acquired from a plurality of vehicles having traveled a specific section of a road, a variance and skewness of each vehicle's speed change for each prescribed unit time; a clustering processing unit (132) which clusters a plurality of vehicles by using the acquired variance and skewness; and a section determination unit (133) which determines, on the basis of whether a cluster resulting from the clustering process meets a specific condition, whether the specific section corresponds to a caution-required section.
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