A mathematical regression model on right-turning saturation flow was then established with the effect of lane width and turning radius being taken into.

考虑右转车道宽度、转弯半径的影响，给出了右转车道饱和流量的回归计算模型。

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Roadway data (lane width and curve radius) and information about environmental variables (traffic, lighting, and weather conditions) will also be collected.

FORBES: Crash Study Seeks Participants In Effort To Save Lives

Complainants say the gap between the bollards, installed on Moor Lane in Worle to enforce a width and weight restriction, is too narrow.

BBC: Worle petition over 'narrow gap' bollards