Railroads are credited with creating the modern business enterprise by scholars such as Alfred Chandler. Previously, the management of most businesses had consisted of individual owners or groups of partners, some of whom often had little daily hands-on operations involvement. Centralized expertise in the home office was not enough. A railroad required expertise available across the whole length of its trackage, to deal with daily crises, breakdowns and bad weather. A collision in Massachusetts in 1841 led to a call for safety reform. This led to the reorganization of railroads into different departments with clear lines of management authority. When the telegraph became available, companies built telegraph lines along the railroads to keep track of trains.