These crossing-the-T accidents are difficult to avoid manually but radar might have helped. The article's claim that "Radar systems lack the angular resolution

These crossing-the-T accidents are difficult to avoid manually but radar might have helped. The article's claim that "Radar systems lack the angular resolution to distinguish a truck crossing the road from a large street sign suspended over the road, so they tend to simply ignore stationary objects" is spurious because signs don't typically move across one's straight-ahead line of travel. Edited to add that a doppler-only radar would fail, perhaps they meant that, or one with awful vertical resolution, but a radar exploiting a static return as in the Bosch adaptive cruise in my ancient chariot has enough horizontal angular discrimination to usually succeed at distinguishing the car in my lane of travel from vehicles in adjacent lanes subtending less than 10-15 degrees off of my heading. It's not clear what time of day we're talking about but if it was in the afternoon on a clear day the truck, south of the Telsa, traveling from w->e, possibly was in or near sun glare and given poor roadside maintenance, obscured by all of the foliage along both roadways.