Term	Description
CTG	Constant time gap—vehicle interspacing increases linearly with speed
CDG	Constant distance gap—vehicle interspacing with a fixed (usually small) distance
CACC	Cooperative adaptive cruise control—communication-enabled vehicle following
PLL	Platoon length limitation—mechanisms to control the lengths of platoons
IA	Intersection awareness—mechanisms to preventing vehicles from entering intersections when stopping within the intersection area is likely
CMG	Creating merging gaps—mechanisms to create gaps within platoons to allow for merging and lane changes
SUMO	A traffic simulator that uses microscopic simulation models
PHABMACS	A vehicle simulator that uses sub-microscopic simulation models
SWITCH	Vehicle interspacing defined by a context-aware switch between CTG and CDG
Traffic throughput	Metric defined by the number of vehicles passing per time [1/min]
Travel time [min]	Metric defined by average time vehicles need to pass [min]
Traffic density [%]	Portion of road meters occupied by vehicles [%]
V2X	Vehicle-2-X—communication among vehicles and infrastructure
Platoon	Multiple automated vehicles driving in a queue
Synthetic simulation scenarios	Scenarios for isolating and analyzing the impact of specific variables
Real-world simulation scenarios	Scenarios replicating real-world conditions to provide a realistic assessment
Multi-intersection scenarios	Scenarios of multiple interconnected and mutually influencing intersections to study the combined effects of their interactions on traffic flow
One-vehicle lookahead	Communication pattern for platoons where each vehicle receives data only from its direct preceding vehicle
Junction blocking	Traffic backlog from a traffic light reaches the adjacent intersection causing the cross traffic to have to wait for a full traffic light cycle until the intersection is clear
Turn blocking	Traffic backlogs preventing the vehicles of the cross traffic from turning
Grid lock	Traffic situation where all the roads in a particular area become so congested with vehicles that traffic comes to a complete standstill