Abstract: A vessel monitoring service obtains transponder data of a vessel operating within a navigable area. In response to obtaining the transponder data of the vessel, the vessel monitoring service evaluates the transponder data and a plurality of travel segments recorded for a plurality of vessels to identify a travel segment to which the transponder data corresponds. The vessel monitoring service updates the travel segment using the transponder data and determine whether the vessel is engaged in an unauthorized activity. If so, the vessel monitoring service provides an indication that the vessel is engaged in the unauthorized activity.

Abstract: A construction loan management facility is described. The facility stores a construction loan management policy data structure that contains an entry for each of multiple lenders. Each entry contains information identifying the lender. For each of multiple construction project budget categories, each entry also contains information specifying a loan processing policy for the construction project budget category. The facility can use the contents of the data structure to automatically supervise the actions of a loan processor acting with respect to a draw request for a loan of an identified lender.

Abstract: A facility for arranging building loan inspections is described. The facility collects building loan inspection requests that originate with lenders during a first period of time. The facility determines an assignment of each received request to one of a plurality of inspectors at a date and time during a second period of time beginning after the end of the first period. The second period has a length no longer than 20% of the length of the first period; the proposed assignment seeking to minimize travel time and inspector dead time of each inspector.

Abstract: A vessel rendezvous system obtains position data from each vessel of a plurality of vessels operating within a navigable area. Using the position data from each vessel, the vessel rendezvous system determines that a first vessel was engaged in an action with a second vessel within the navigable area. In response to this determination, the vessel rendezvous system provides an indication that the first vessel and the second vessel were engaged in the action within the navigable area.

Abstract: A vessel monitoring service obtains transponder data of a vessel operating within a navigable area. In response to obtaining the transponder data of the vessel, the vessel monitoring service evaluates the transponder data and a plurality of travel segments recorded for a plurality of vessels to identify a travel segment to which the transponder data corresponds. The vessel monitoring service updates the travel segment using the transponder data and determine whether the vessel is engaged in an unauthorized activity. If so, the vessel monitoring service provides an indication that the vessel is engaged in the unauthorized activity.