  Connected and Automated Vehicles (CAVs) can have a profound influence on
transport systems. However, most levels of automation and connectivity require
support from the road infrastructure. Additional support such as Cooperative
Intelligent Transport Systems (C-ITS) services can facilitate safe and
efficient traffic, and alleviate the environmental impacts of road surface
vehicles. However, due to the rapidly evolving technology, C-ITS service
deployment requirements are not always clear. Furthermore, the costs and
benefits of infrastructure investments are subject to tremendous uncertainty.
This study articulates the requirements using a structured approach to propose
a CAV-Readiness Framework (CRF). The main purpose of the CRF is allowing road
authorities to assess their physical and digital infrastructure readiness,
define requirements for C-ITS services, and identify future development paths
to reach higher levels of readiness to support CAVs by enabling C-ITS services.
The CRF is intended to guide and support road authorities' investment decisions
on infrastructure.
