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

  • CEA conference 2018 – focusing on technology solutions
    May 2, 2018
    New technology and reduced machine emissions were amongst the key topics at the CEA conference in London - Mike Woof writes. Construction machine manufacturers are going to have to find new solutions if targets on emissions controls are going to be met. This is a clear viewpoint for the industry. But as the speakers at the recent CEA conference in London showed, there are differing opinions on how that will be achieved and what technical solutions will come to the fore. Duncan Riding, business development
    Read More
  • Transforming bitumen for the future
    January 30, 2023
    It is easy to say that the road sector never changes, but the latest E&E Event, held last month suggests this is not true - Kristina Smith reports from Vienna
    Read More
  • Highway Procurement: IRF Steps up to the plate to leverage long term value
    May 15, 2019
    Public procurement can be leveraged to deliver long-term value for money, and promote innovation and sustainability, according to a new White Paper published by the International Road Federation in consultation with key international specialists. “When procurement guidelines are not enforced with a high degree of professionalism, there is a much higher risk of sub-optimal delivery,” noted Eric Cook, co-chair of the IRF Committee on Alternative Financing & Procurement, who convened the stakeholders for a h
    Read More
  • Gerd Leonhard to speak at TRA 2018 – the Digital Era of Transport
    January 30, 2018
    Gerd Leonhard: a key speaker at Transport Research Arena 2018 – TRA 2018 - in Vienna in April. International futurist Gerd Leonhard has been confirmed as a key speaker at this year’s Transport Research Arena 2018 in Vienna in April. To underline the visionary nature of TRA 2018, Leonhard - author and head of The Futures Agency - will speak at the opening session, exploring the importance of new technologies and the role of humans in the world of today’s digital mobility. From April 16-19, the 7th Transp
    Read More

Highlighted Content