While the Torah forbids one to place himself into a situation of danger, some degree of slightly risky behavior is allowable under the concept of shomer pesaim Hashem. Are the parameters of this concept based on some objective quantifiable degree of mortality or on generally accepted behavior among one's peers?
If it's the latter, would one look at the generally accepted behavior of his geographic or philosophical peers? For example, would a Haredi person, living in a Modern Orthodox community, evaluate generally accepted behaviors in his geographic or philosophical "location"?
I am looking for sourced answers on this please.