Phoenix, AZ (March 7, 2026) – A woman died after a two-vehicle collision reported on Thursday afternoon, March 5, near Deer Valley Drive and 40th Street just north of the Loop 101.
The crash occurred at about 2:15 p.m. According to available information, one of the drivers was taken to a nearby hospital following the collision. Authorities later confirmed that the driver died from injuries sustained in the crash. She has been identified as 49-year-old Alanna Duval Cziperle.
Investigators said Cziperle was turning left onto Deer Valley Drive when her vehicle collided with another car traveling east along Deer Valley. Information about the other driver has not been released.
Authorities continue to investigate the cause of the crash, and more details will be released as soon as they become available.
We extend our sincere condolences to the family of the deceased.
Why Left-Turn Crashes Often Occur at Busy Intersections
Left-turn crashes are among the most common types of intersection accidents. These incidents often occur when a driver turning left must judge the speed and distance of oncoming vehicles while also monitoring traffic signals and nearby traffic.
Even a small miscalculation can lead to a serious collision. Vehicles traveling straight typically move at higher speeds, which can increase the force of impact when a turning vehicle crosses their path.
Road design and traffic flow can also affect the occurrence of these crashes. Intersections near highways or major routes often see heavier traffic and faster-moving vehicles. Clear visibility, proper timing of turns, and awareness of approaching traffic are factors that can influence whether a turn is completed safely.
