Walking in L.A.: Times analysis finds the county's 817 most dangerous intersections by LAURA J. NELSON, ARMAND EMAMDJOMEH and JOSEPH SERNA

It's evening rush hour near MacArthur Park, and the streets teem with activity.

Crowds pack the crosswalks, weaving around cars that nose through to make right turns. Men pull food carts and women push strollers toward the Metro Rail station, accompanied by the strains of pop music from cars and businesses.

This is the kind of dense, transit-oriented neighborhood that Los Angeles officials say the car-clogged city needs to replicate.

But Westlake's bustling character also makes it one of the city's most dangerous areas for pedestrians: On four blocks of South Alvarado Street, the neighborhood's backbone, 90 people were hit by cars in a period of 12 years.