Where should the second warning triangle be placed when stopped on a two-lane road in daylight?

On a two-way or undivided road, the three warning triangles are placed as follows: one within 10 feet of the rear corner of the vehicle on the traffic side, one about 100 feet behind the vehicle on the shoulder or in the lane traffic uses to approach, and one about 100 feet in front of the vehicle in the direction of oncoming traffic. The forward triangle is what most drivers forget — it warns oncoming traffic on a two-way road that there is an obstruction. On divided highways, all three triangles go behind the vehicle: one at 10 feet, one at 100 feet, and one at 200 feet. At night or in low visibility, you may use flares instead, but be cautious of flammable cargo. Activate four-way flashers as soon as you stop, before getting out to set triangles.