Speed {SRMData}R Documentation

Speed of vehicles

Description

Speeds of vehicles before and after adding additional signage.

Usage

data(Speed)

Format

A data frame with 79 rows (each vehicle) and 2 columns:

When

When the speed is measured; one of Before or After new signage added

Speed

The measured speed, in km/h

Source

Ma, Yongfeng, Wenbo Zhang, Xin Gu, and Jiguang Zhao. 2019. Impacts of Experimental Advisory Exit Speed Sign on Traffic Speeds for Freeway Exit Ramp. PLoS One 14 (11):e0225203


[Package SRMData version 1.0.1 Index]