Intersection, the New York City-based company that installed and maintains the structures, has spent $110,000 in repairs this year. In exchange for the free installation and maintenance, The revenue generated by advertising on the shelters screens is partially shared with the city. Intersection’s 20-year contract with the city stipulates that the company pays Philadelphia an annual fee, a percentage of the total revenue from ad sales, plus half of the revenue remaining after Intersection has paid for installation and maintenance costs.