Ab­stract

Ve­hi­cle-to-every­thing (V2X) com­mu­ni­ca­tion is seen as one of the main en­abling tech­nolo­gies for au­to­mated ve­hi­cles. Col­lec­tive per­cep­tion is es­pe­cially promis­ing, as it al­lows con­nected traf­fic par­tic­i­pants to “see through the eyes of oth­ers” by shar­ing sen­sor-de­tected ob­jects via V2X com­mu­ni­ca­tion. Its ben­e­fit is typ­i­cally as­sessed in terms of the in­creased ob­ject up­date rate, re­dun­dancy, and aware­ness. To de­ter­mine the safety im­prove­ment thanks to col­lec­tive per­cep­tion, the au­thors in­tro­duce new met­rics, which quan­tify the en­vi­ron­men­tal risk aware­ness of the traf­fic par­tic­i­pants. The per­for­mance of the V2X ser­vice is then an­a­lyzed with the help of the test plat­form TEPLITS, using real traf­fic traces from Ger­man high­ways, amount­ing to over 100 h of total dri­ving time. The re­sults in the con­sid­ered sce­nar­ios clearly show that col­lec­tive per­cep­tion not only con­tributes to the ac­cu­racy and in­tegrity of the ve­hi­cles’ en­vi­ron­men­tal per­cep­tion, but also that a V2X mar­ket pen­e­tra­tion of at least 25% is nec­es­sary to in­crease traf­fic safety from a “risk of se­ri­ous traf­fic ac­ci­dents” to a “resid­ual hy­po­thet­i­cal risk of col­li­sions with­out minor in­juries” for traf­fic par­tic­i­pants equipped with non-re­dun­dant 360° sen­sor sys­tems. These re­sults sup­port the on­go­ing world­wide stan­dard­iza­tion ef­forts of the col­lec­tive per­cep­tion ser­vice.