A method of using dynamically placed pre-positioned objects as landmarks to operate an industrial vehicle, the method comprising: transporting an object along a path within a physical environment and placing the object at a location within the physical environment such that the placed object becomes a dynamically placed pre-positioned object in the physical environment; determining a pose of the dynamically placed pre-positioned object based at least in part on (i) vehicle pose prediction data stored on a central computer or a mobile computer coupled to the industrial vehicle and (ii) a location of the object to be placed relative to a lift carriage of the industrial vehicle; wherein a vehicle or object pose refers to a current position and orientation of the vehicle or object, respectively; updating a map of the physical environment by using the determined pose and adding placed object data representing the dynamically placed pre-positioned object to the map of the physical environment to create updated map data such that the placed object, when added to the map, serves as a landmark with observable features and can be used in the navigation of an industrial vehicle with access to the updated map data; wherein updating the map comprises: creating a landmark based at least in part on the placed object data, wherein the placed object data comprises observable features from the placed object, the determined pose representing the location at which the object was placed, and an object pose uncertainty from the vehicle pose prediction data when it places the object; and adding the landmark to the updated map data; storing the updated map data on a mobile computer attached to the industrial vehicle or on a central computer coupled to the industrial vehicle via a network; and operating the industrial vehicle based on a navigational position determined from sensor data and the updated map data including the landmark such that another object may be picked or placed safely in a position required by one or more tasks, by navigating the industrial vehicle along a path within the physical environment. transporting an object along a path within a physical environment and placing the object at a location within the physical environment such that the placed object becomes a dynamically placed pre-positioned object in the physical environment; determining a pose of the dynamically placed pre-positioned object based at least in part on (i) vehicle pose prediction data stored on a central computer or a mobile computer coupled to the industrial vehicle and (ii) a location of the object to be placed relative to a lift carriage of the industrial vehicle; wherein a vehicle or object pose refers to a current position and orientation of the vehicle or object, respectively; updating a map of the physical environment by using the determined pose and adding placed object data representing the dynamically placed pre-positioned object to the map of the physical environment to create updated map data such that the placed object, when added to the map, serves as a landmark with observable features and can be used in the navigation of an industrial vehicle with access to the updated map data; wherein updating the map comprises: creating a landmark based at least in part on the placed object data, wherein the placed object data comprises observable features from the placed object, the determined pose representing the location at which the object was placed, and an object pose uncertainty from the vehicle pose prediction data when it places the object; and adding the landmark to the updated map data; creating a landmark based at least in part on the placed object data, wherein the placed object data comprises observable features from the placed object, the determined pose representing the location at which the object was placed, and an object pose uncertainty from the vehicle pose prediction data when it places the object; and adding the landmark to the updated map data; storing the updated map data on a mobile computer attached to the industrial vehicle or on a central computer coupled to the industrial vehicle via a network; and operating the industrial vehicle based on a navigational position determined from sensor data and the updated map data including the landmark such that another object may be picked or placed safely in a position required by one or more tasks, by navigating the industrial vehicle along a path within the physical environment.