Traffic.com, the company that supplies real-time data from its roadside sensors to this area’s 511 traffic-warning system, now offers all of its “premium’’ pay services to commuters for free.

From its web site, the company provides custom-designed traffic reports on demand for individuals’ commutes by telephone at (866) MYTRAFC. The company also provides custom traffic alerts to commuters’ telephones and e-mail accounts, including mobile e-mail accounts.

Those services once ranged from $4.99 to $9.99 a month. They’re now supported by advertising. Traffic.com says it currently logs more than one million unique site visitors each month.

Traffic.com supplies its services to consumers in 35 major U.S. metropolitan areas.

Commuters interested in subscribing to any of the services should visit the company’s website, http://www.traffic.com, where they can personalize and save their daily commutes or travel routes.