Police have identified the three victims in last week's deadly high-speed crash on Highway 1 east of Vancouver.

Langley residents Jong Seob Kim, Gi Pyo Hong and Yongkwan Kim were all killed when the late-model BMW they were driving crashed into the back of a truck in a construction zone.

Mounties say that the car was driving at an "absolutely ridiculous speed' through an active construction zone with a lowered speed limit, when it entered a left-hand lane closed to regular traffic.

It struck the rear end of a flat bed truck parked in the closed lane. Two workers inside the truck are lucky to have escaped with only whiplash and emotional shock.

Police say that speed and alcohol are both contributing factors in the crash. None of the victims were wearing seatbelts -- a fourth man in the BMW had his fastened and survived the collision.

A plea to slow down

The people behind the Port Mann/Highway 1 project are now pleading with drivers to slow down to protect other motorists and construction workers.

The posted speed limit in the 37-kilometre corridor where Friday's crash happened is just 80 kilometres per hour in most places.

"It's about the safety of workers, drivers and their passengers. These speed zone restrictions are there to make sure that we can get the work done and everyone can travel safe," project spokeswoman Pam Ryan told CTV News.

But many drivers aren't getting the message. At one speed reader station on Monday, most drivers were travelling at well above the posted limit. In fact, many were travelling more than 20 kilometres per hour above the limit.

The consequences can be deadly for construction workers. In July, a 49-year-old flag person was struck and killed on the job on the Lougheed Highway in Mission.

Police are appealing to drivers to obey the posted limits.

"If you're doing higher than 80 kilometres an hour, you can expect a ticket," RCMP Cpl. Jody Fritzke said.

Mounties are also reminding people that tickets will double in construction zones.

With a report from CTV British Columbia's Peter Grainger