Earlier quoted context omitted.
> My understanding is that Fedex and especially UPS trucks are very highly optimized for their work and for fuel efficiency and that their routes are also extremely optimized (for example, UPS truck routes almost never include a left turn). Apparently UPS trucks get around 10 mpg [1]. Not many consumer vehicles are that inefficient. I'd be surprised if UPS's ORION is better at route optimization than a consumer app l…
UPS truck also carries a hell of a lot more than your average employee is going to put in his car and on delivery-dense routes MPG isn't a great signal for efficiency
True, UPS has the advantage of denser delivery routes. But I'm sure Walmart has done the analysis and determined that they can deliver (some) packages more cost-efficiently than UPS despite this. Same with Amazon, which has been hiring their own couriers in some areas.