Faced with providing service for ever more data-hungry cellphones, telecommunications carriers are in a nonstop race costing billions of dollars to boost the capacities of their networks.
To handle the heavy volume of video, music and Web pages that smartphone users are downloading, office buildings, strip malls, condominiums, schools, churches and just about every other type of structure — including water towers and freeway overpasses — are being pressed into service as cell signal relay stations, or cell towers.
The number of cell stations is growing rapidly but stealthily. Few new cell sites are the imposing triangle-topped metal poles that are widely regarded as eyesores.