Term: congestion

congestion (noun): the state of being extremely crowded and blocked with traffic or people, making movement difficult. 

synonyms: jam, bottleneck, blockage, overcrowding. 

pronunciation: /kənˈdʒɛstʃən/ 

translation: sastrēgums / pārpildītība 

example: The new bypass was built to reduce traffic congestion in the city center. 

other words from this root: congest (verb), congested (adjective), congestive (adjective).