«The majority of radio listening throughout the week takes place out-of-home except in the evenings.  (...) : At-home and in-car lead in mornings, at-work dominates in middays, in-car takes over in afternoons and at-home wins again in the evenings. Between 2002 and 2006, in-car listening rose throughout each daypart and on weekends, primarily at the expense of at-work tune-in. Over those four years, in-car’s share of listening was up 2% overall, 3% in mornings, 6% in middays, 5% in afternoons and 4% in evenings, while at-work was down in each daypart at least 2% and as much as 8%. These figures reflect the reality of American workers’ gradually longer commutes and increasingly mobile lifestyles.»

fonte: Radio Today 2007, Arbitron, pag 96