The Honolulu Medical Examiner's Office yesterday identified a motorist, motorcyclist and pedestrian who died from injuries suffered in traffic accidents on O'ahu during the first seven days of September.

Kenneth Yamada, 47, died at The Queen's Medical Center late Friday after crashing his Toyota sedan on Punchbowl Street near Lusitana Street. Police said Yamada was northbound on Punchbowl when his car veered into the southbound lane, went up a dirt embankment and ran into a concrete structure.

Police vehicular homicide investigators said speed appeared to be a factor in the crash.

An autopsy is scheduled for today.

Vehicular homicide investigator Sgt. Danny Kaholokula yesterday also reported the deaths of a motorcyclist critically injured in a crash on North Nimitz Highway near Sumner Street Sept. 2 and an elderly woman pedestrian struck by a vehicle in Waikiki on Sept. 1.

Sze Wong, 25, of Kapolei, lost control of his 2002 Yamaha motorcycle at 1:20 p.m. after failing to negotiate a bend in the roadway near Flora-Dec Sales Inc. at 373 N. Nimitz, hit a curb on the left side of the highway and slammed into a concrete bridge railing, according to vehicular homicide Sgt. Lorenzo Ridella.

Wong, who was thrown from the motorcycle, died Tuesday at Queen's. Speed was an apparent factor in the crash and Wong was not wearing a helmet, police said.

Emma Larson, 74, of Waikiki died Sept. 2 at Queen's after being struck by a vehicle Sept. 1 while in a crosswalk on Kalia Road. The accident occurred at 7:55 a.m.

Larson was O'ahu's 15th pedestrian fatality of the year and third since Aug. 6. By this day last year, there had been 15 pedestrian deaths.

With the three deaths, O'ahu's traffic fatality count for the year stands at 46. By this day last year, the count was 67.

Reach Rod Ohira at rohira@honoluluadvertiser.com.