An Investigation of the Safety Performance of Roundabouts in Korea Based on a Random Parameters Count Model

Table 2

Accident reduction effects of roundabout construction.

Before/After; Roundabouts	Average Annual Crashes
	Total	Fatality	Severe Injury	Injury	Minor Injury
Before	571	15	258	274	24
After	308	5	118	171	14
%	-46.1%	-66.7%	-54.3%	-37.6%	-41.7%

Source: [15] Korean Roundabout Research Center (http://www.roundabout.or.kr/).