Need to look more at the method of this study, but if I'm not wrong, Taiwan's roads are possibly the only one in the world to continue to use a two-stage left turn rule for scooters? This study is limited in that it only compares accidents caused ...
taipeitimes.com/News/taiwan/ar…
taipeitimes.com/News/taiwan/ar…
... vis-a-vis roads in Taiwan with two-stage left turn, and those without. But it does not question the fundamental reasons for traffic behavior in Taiwan - poor traffic infrastructure, poor enforcement lack of logical traffic planning and poor public transportation development.
To therefore conclude that two-stage left turns causes less severe accidents (even as it actually causes more accidents) does not adequately account for the systemic factors that cause accidents. Didn't a Taoyuan study found otherwise, that two-stage left turn are more dangerous?
Moreover, the illogic of having two-stage left turns on some roads, while not having them in others results in competing attention for drivers, in addition to other competing contradictory traffic and road demands, and there is a need to streamline processes on Taiwan's roads.
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