Why do the cones stay up on the weekends?

The contractor has placed cones indicating where there are travel lane and parking closures. The corridor is an active construction site. The cones and barricades indicate areas where the public is not able to be during construction, whether the contractor is on site or not. There may be hazards in the coned off area for vehicles, bicyclists, or pedestrians. It would also be hazardous to have cars merging between one and two lanes along the corridor if the cones did not run the length of the project area. 

They have also established temporary pedestrian access throughout the project area with cones and barricades. These will remain in place as long as they are working in those area. During the project, the contractor has to maintain ADA accessible pedestrian access. It would greatly delay the project to take these down and set them up in areas where it may be possible. In general, the pedestrian access would not be ADA compliant due to the construction if they removed the temporary access.