Behaviour Description Database for AVs in Singapore

A Technical Reference for Autonomous Vehicles (AVs), with part 1 focusing on basic behaviour guidelines (TR68-1) is published with the intent to be a reference for evaluation of appropriated behaviour on Autonomous Vehicles for Singapore. This is based on applicability from Basic Theory of Driving (BTD) and Final Theory of Driving (FTD) which are the traffic code/rules for human driving. This report contains a consolidation of current guidelines from TR68-1, BTD and FTD. It will allow an initial identification of missing guidelines for AV behaviour on roads; however, it is difficult to identify conflicting rules or gaps in guidance without going into identified traffic situations. Identified situations for analysis were chosen from Centre of Excellence for Testing & Research of Autonomous Vehicle (CETRAN) assessment experience for further investigation. The outcome of the report proposes additional behaviour characteristics and guidelines to situations identified to close the gap between assessors and developers on expected AV behaviour. These recommendations could improve current guidelines for AV behavioural in assessment and generally for the local AV ecosystem for urban tropical roads in Singapore. These recommendations could also serve as inputs for future TR 68-1 revisions where a sample set of reference situations can help to define clearer expectations or requirements for AV behaviour in those situations. This will help Singapore push forward in better definition of the expected AV behaviour for AV systems.