Fuel Economy in Truck Platooning: A Literature Overview and Directions for Future Research

Table 2

Optimizations of truck platooning

Optimization method	Reference	Main contribution
Route planning	[36]	Developing a comprehensive mathematical formulation and promoting a locally distributed approach
	[37]	Proving that the platooning problem is NP-hard
	[38]	A nonlinear mathematical model was presented and a genetic algorithm was applied
Speed adjusting	[39]	A vehicle would wait at a certain meeting point
	[40]	Letting the follower vehicles drive faster
	[34]	Introducing several coordination schemes
	[41]	Both follower and lead vehicles were allowed to adjust the speed
	[42]	A distributed coordination scheme
	[35]
	[43]	A centralized coordination scheme
	[44]	Proposing an iterative algorithm