Journal of Advanced Transportation / 2018 / Article / Tab 1

Research Article

Investigating the Differences of Single-Vehicle and Multivehicle Accident Probability Using Mixed Logit Model

Table 1

Descriptive statistics of response and significant explanatory variables.

Variable MeanStd. dev.MinimumMaximum

Crash type0.0080.12102
Temporal characteristic
Time of sunset0.062na01
4 a.m.-5 a.m.0.040na01
Traffic characteristic
Low speed limit indicator (1 if speed limit is less than 55 miles per hour, 0 otherwise)0.369na01
Speed gap (speed limit minus traffic speed) (mph)2.6425.533069.18
Hourly traffic volume (in thousands per hour)2.9162.1010.0314.988
Truck percentage (%)6.2151.9222.810.7
Road characteristic
Number of entering ramps per lane per mile0.2520.21500.926
Number of lanes4.1590.56235
Curvature (degree)0.9470.68102.260
length of segment (miles)1.0140.7690.2364.5
Long remaining service life of rutting (1 if the value of rut is higher than 99, 0 otherwise)0.225na01
Inside shoulder width (in feet)9.0062.583515
Environmental and road surface characteristic
Cross wind speed4.1463.906031.98
Wet road surface0.082na01
Chemical wet road surface0.037na01

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19.