Road Closures: Road Closures provides a list of current lane and shoulder closures. These closures are temporary closures for Maryland SHA, SHA hired contractors and MDTA to set up various workzones. This information is provided for notification purposes of possible travel delays due to lane/shoulder closures and for aiding in trip planning. The following information is included: Maryland State route number, location information, lane/ shoulder information, start and stop times, reason for workzone.

Traffic Incidents: Any event managed by CHART system that closes a travel lane(s) on the highway system. These events contain vehicle accidents, tractor trailer incidents, debris in roadway.

Weather Events: Any event managed by CHART system that closes a travel lane(s) due to severe weather. These may be caused by events such as flooding, ice, snow, high water.

Other Traffic Events: These events managed by the CHART system typically do not close travel lanes, but are associated with some travel delay. Examples include Recurring Congestion, Special Events such as civic or sporting events, Disabled vehicles not in roadway, Police Activity, Signal outages.