That disparity is unbelievable. Even allowing the 15 year difference. The UK consistently comes surprisingly well toward the safest end of global road safety stats, and has as long as I can remember. By way of sanity check, it would mean walking in the USA is safer than driving a car in the UK (1.9/bn m). That's not credible. :)
Sourced from gov.uk [0] (ods spreadsheet file), pedestrian fatalities, in 2016, are 7.1 per million population in the United Kingdom; 470 pedestrians killed, and 18.5 in the USA; 5,987 pedestrians killed, confirmed for USA by NHTSA[1].
For overall road traffic deaths, in 2015 UK 2.9 per 100k population (1,770 total deaths) 22.9% pedestrians, USA 10.6 per 100k (32,719 total deaths, approx 5x the UK population, 18x the total reported deaths) 14.1% pedestrians, source WHO, table A2 [2].
Every international comparison and US source I found prefers per 100k or million population and agrees with the above. I stopped there, so can't compare the gov.uk doc you linked, or why the US data in BMJ differs so markedly.
Sourced from gov.uk [0] (ods spreadsheet file), pedestrian fatalities, in 2016, are 7.1 per million population in the United Kingdom; 470 pedestrians killed, and 18.5 in the USA; 5,987 pedestrians killed, confirmed for USA by NHTSA[1].
For overall road traffic deaths, in 2015 UK 2.9 per 100k population (1,770 total deaths) 22.9% pedestrians, USA 10.6 per 100k (32,719 total deaths, approx 5x the UK population, 18x the total reported deaths) 14.1% pedestrians, source WHO, table A2 [2].
Every international comparison and US source I found prefers per 100k or million population and agrees with the above. I stopped there, so can't compare the gov.uk doc you linked, or why the US data in BMJ differs so markedly.
[0] https://www.gov.uk/government/statistical-data-sets/ras52-in... (Download RAS52001)
[1] https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/... (PDF. Note they report per 100,000 not million, so it's 1.85)
[2] http://www.who.int/violence_injury_prevention/road_safety_st...