NAIROBI, Kenya — The wrenched and twisted wreck was, in itself, shocking enough: A passenger bus in Kenya crashed through a barrier at a sharp curve on Thursday, flipping over, tearing off the roof and killing 41 people, according to the Kenya Red Cross.

But perhaps the worst tragedy was how predictable the accident was.

Last week, two car crashes occurred at the same curve where the bus went off the road, leaving at least 10 people dead, according to local news reports. Another deadly accident in nearby Narok, at the junction for the popular safari destination Maasai Mara, killed two more people later in the day on Thursday.

But in particular, a series of fatal bus crashes have shocked the nation — including a school bus accident last month that killed 20 people and a bus crash in February that killed at least 35 people — underscoring the serious issue of traffic safety here.

President Uhuru Kenyatta vowed Thursday to take action on road safety in Kenya. “We must all begin taking responsibility and to protect the lives of Kenyans on our roads,” he said.