Skip to main content

Connected vehicles: implications for road networks and mobility

Mobility services are expected to undergo spectacular changes within the next two decades with the introduction and widespread use of connected and autonomous vehicle (CAV) technology. However, the transition phase from human driving to self-driving will be gradual, requiring incremental interventions on the physical and digital road network to allow it to cope with mixed vehicular traffic. Cities such as Dubai have embraced the challenge by setting a target to reach 25% driverless trips by 2030 as part o
May 15, 2019 Read time: 4 mins
Dr Bill Sowell, chair of the IRF ITS Committee presenting the pathway to autonomous vehicles at a workshop organised in Dubai in October 2018
Mobility services are expected to undergo spectacular changes within the next two decades with the introduction and widespread use of connected and autonomous vehicle (CAV) technology. However, the transition phase from human driving to self-driving will be gradual, requiring incremental interventions on the physical and digital road network to allow it to cope with mixed vehicular traffic.


Cities such as Dubai have embraced the challenge by setting a target to reach 25% driverless trips by 2030 as part of an Autonomous Transportation Strategy adopted in 2016. The 8781 Washington-based IRF Global is currently assisting Dubai authorities in the fulfilment of this goal through a three-year knowledge partnership programme articulated around consensus-building workshops, training programmes and limited scale pilot projects.

“With Level 3 autonomy equipped in cars currently under production, there is good reason to believe that self-driving functions are not far off,” noted Dr Bill Sowell, chairman of the IRF ITS Committee. “Whilst various automakers have made predictions on the year they will begin mass-producing self-driving vehicles, these typically do not factor the speed of required regulations in such areas as vehicle licensing, driver/vehicle manufacturer liability, cyber security and data protection.”   

New reports also point to the challenges presented by “unconstrained autonomous mobility” scenarios, where regulators do little to incorporate emerging mobility services in terms of infrastructure upgrades or policies. Under this scenario, the market share of point-to-point trips may actually increase congestion leading to travel times as much as 15% higher compared with the baseline scenario. Absent demand management and supply side strategies, such as repurposing current HOV lanes for autonomous vehicles, an absolute increase in vehicle miles travelled would exacerbate both urban and interurban congestion issues.

“How CAVs will read traffic signal and signs precisely remains a fundamental problem to solve” Dr Sowell confirmed. The US Federal Highways Administration (FHWA) recently completed a Request for Information on integrating automated vehicle needs into the highway system. The number one requirement set by the automotive industry is for greater uniformity and quality in road markings and traffic control devices. “Having greater consistency and improved state of good repair benefits all categories of road users.” Recognising this, several jurisdictions in the US and Europe are already proposing new performance standards for machine-readable road markings in consultation with automotive and technology suppliers.

IRF is currently reviewing these standards and their implications for the industry as a whole in preparation for a new White Paper “Connected & Autonomous Vehicles: Implications for Road Design & Management” expected to be released in June 2019.

IRF Global to host ITS RoundTable at R2T Conference

The national ITS associations of Italy, South Africa, Malaysia and the US will join IRF in Las Vegas on November 19th-22nd for panel discussions addressing the advantages of international cooperation in getting ITS on the political agenda. Discussions will also include the key political arguments for investing in ITS and how these can be, and have been, used elsewhere, with examples from national, state/regional and local levels.

The IRF Global R2T Conference & Exhibition is the new international meeting point where leading industry innovators, researchers, and stakeholders acquire essential engineering and business insights, and help build tomorrow’s transportation infrastructure today.

This year’s Conference will feature more than 150 internationally recognised speakers from over 40 countries sharing insights on topics ranging from innovative road construction techniques to preparing networks for connected and autonomous vehicles. With a specific focus on innovation and the future, the main conference themes and panels will focus on how to utilise new technologies and innovative practices in order to build and maintain more efficient transportation infrastructure and systems.


For more information on companies in this article

Related Content

  • Innovation is delivering better mobility systems: highlights from the IRF Annual Conference 2023
    January 7, 2024

    The IRF Annual Conference 2023 proved to be once again an enlightening experience for the road and transport community, welcoming participants from 105 countries, and 40 distinguished speakers from leading organisations including the IDB, UNECA, the World Bank, ERTICO, ASECAP and many more.

  • UK moves to disclose road data to app makers
    August 28, 2019
    The UK is proposing to share road network data, including roadworks, with makers of mobile apps to warn drivers of potential congestion months in advance. The information for navigational apps powered by artificial intelligence would warn of planned changes to the road network, including work zone arrangements, which would enhance worker safety. Tech firms could soon get access to the necessary data thanks to a UK government review of legislation around Traffic Regulation Orders. The orders behind res
  • Corridor for prosperity: The 5G Road
    June 14, 2019
    The next generation of highways will be a matrix of smart, intelligent and dynamic technologies that lower maintenance costs and ensure user safety. But challenges lie ahead, as Geoff Hadwick discovered in Dubrovnik The fifth-generation road is about to provide the world’s highway authorities with a big leap forward. This “forever-open”, self-healing road will integrate innovation into infrastructure, vehicles and entire intelligent transport systems, says Adewole Adesiyun, deputy secretary general of
  • TRA 2024 conference in Dublin
    February 29, 2024
    The TRA 2024 conference is being held in Dublin.