Predicting Work Zone Collision Probabilities via Clustering: Application in Optimal Deployment of Highway Response Teams

Figure 3

Duration of WZs and split in total work zone hours in day/night and peak/off-peak. Seventeen continuous distributions were fitted to WZ duration [74], and the probability density functions of those distributions that best fit in terms of Bayesian information criterion are shown in the figure on the left. Sunrise and sunset times for the dates of maintenance work and geographic locations of WZs are computed using MATLAB toolbox from SCRIPPS Institute of Oceanography [75].