I just had a crazy thought that with no refuelling this year, perhaps two lollipop men would be better than just one. To illustrate my point consider the one lollipop man situation in the diagram below:
Here we see the focus of the pop man covering all four wheels of the car and the centre of his vision on the rear right wheel. Note that the arc is very wide and also note that to see up the pit lane widens that arc further (the red part). Now consider adding a second pop man on the other side of the car:
Here we see that with a second pop man both arcs of vision are much more narrow as they only look at the wheels on their side of the car. In addition, the centre line of the arc of vision for the lane side pit man now looks directly up the pit lane making it easy to see oncoming cars.
I'm aware having two lollipops makes it a bit more difficult for the driver as he now needs to wait on two signals to leave. However this may have a positive impact in making the driver less likely to jump if the lollipop twitches accidentally.
What do you think?