Light-Based Communication to Further Cooperation in Road Traffic

Powelleit, Matthias; Winkler, Susann; Vollrath, Mark

doi:10.1007/978-3-030-45131-8_6

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Results showed that the eHMI was perceived as supportive and was well understood by the interacting manual drivers after only a few trials and a coherent combination of eHMI and dHMI was rated with a high usability. However, so far, only little research has focused on the design of eHMIs for the interaction of an HAV with its following road users (Powelleit et al, 2018;Schindler et al, 2020a). Overall, the well-coordinated interplay of both external communication signals seems important to enhance the interaction in mixed traffic environments and to foster safety, understanding, acceptance, and trust in HAVs (Bengler et al, 2020;Kaleefathullah et al, 2022;Lau et al, 2022).…”

Section: Visual External Communication Of Havs With Other Tra C Parti...mentioning

confidence: 99%

Promoting trust in HAVs of following manual drivers through implicit and explicit communication during minimal risk maneuvers

Hess

Lau

Wilbrink

et al. 2023

Front. Comput. Sci.

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The successful integration of highly automated vehicles (HAV) in future mixed traffic environments will depend, among other things, on their seamless, safe, and accepted interaction with other road users. Therefore, appropriate combination of light signals, as external human-machine interface (eHMI), and driving behavior, as dynamic human-machine interface (dHMI), is required consistently in order to develop trust of following manual drivers in HAVs. Especially, in borderline traffic scenarios where HAVs are confronted with challenges, such as loss of connectivity, so-called minimal risk maneuvers (MRMs) are performed abruptly. Here, understanding communication via eHMI and dHMI is crucial for road safety, as drivers need to prepare for maneuvers themselves. Therefore, two consecutive, explorative online video studies were conducted. Firstly, the appropriate braking dynamics for an MRM were evaluated. Secondly, insights into the eHMI communication strategy of an HAV during an MRM were gained. The overall aim of this work is to present strategies for implicit and explicit communication channels of an HAV in order to promote learned trust during MRMs from the perspective of drivers who follow them. The results show that adding novel eHMI designs (e.g., warning sign, 360° LED light-band) to conventional light signals positively affects the user experience in a first contact interaction. The findings could have a positive impact on the development of trust in HAVs. In conclusion, specific eHMI communication strategies can be highly supportive for following manual drivers in MRM scenarios, which may lead to legislative considerations in the future.

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Section: Visual External Communication Of Havs With Other Tra C Parti...mentioning

confidence: 99%

Promoting trust in HAVs of following manual drivers through implicit and explicit communication during minimal risk maneuvers

Hess

Lau

Wilbrink

et al. 2023

Front. Comput. Sci.

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show abstract

“…Road projections may provide a range of benefits including enhanced safety [17][18][19][20] and improved driving experience [18,21], among others. Road projection technology has been proposed and/or studied for a variety of applications including parking assistance [22], displaying a stop sign or other road markings [23], displaying the width of the vehicle [24,25], navigation content [26], displaying warning messages [24], and communicating driving intention or warnings [20,[27][28][29][30][31], especially in the context of connected and autonomous vehicles (CAVs) as so-called external human-machine interfaces (e-HMIs) [32][33][34][35][36][37]. On the other hand, some research investigates whether there is a possibility that these types of projections could distract drivers [23,[38][39][40].…”

Section: Introductionmentioning

confidence: 99%

School Bus Lighting Effectiveness and Improvements: Results from a Driving Experiment

Farmer,

Song,

Shin

et al. 2024

Sustainability

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In Korea, drivers should come to a complete halt and proceed cautiously when encountering a school bus displaying its red warning lights and other safety features, a requirement that is often disregarded in practice. The reason for this might stem from a lack of awareness about the law, and we set out to investigate whether an innovative lighting system employing road projections or VMS could encourage compliance. We found that while 63% of drivers in surveys indicated they would correctly stop when approaching a stopped school bus, in driving experiments, we found that only 18% of drivers did. Our study also uncovered a knowledge gap, with just 53% to 60% of respondents correctly answering basic about the purpose of existing lighting and laws related to school buses. With on-road experiments, when we introduced road projection systems for enhanced non-connected vehicle-to-vehicle (V2V) communication, we found that understanding would increase and compliance could increase by up to 77% (from surveys) and 93% (in road tests); these findings underscore the potential of road projections or potentially VMS as effective V2V tools for enhancing road safety in proximity to school buses.

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Future of Urban Mobility – New Concepts Instead of New Technologies?

Karrer-Gauß

Seebode

2021

HCI in Mobility, Transport, and Automotive Systems

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Light-Based Communication to Further Cooperation in Road Traffic

Cited by 3 publications

References 8 publications

Promoting trust in HAVs of following manual drivers through implicit and explicit communication during minimal risk maneuvers

Promoting trust in HAVs of following manual drivers through implicit and explicit communication during minimal risk maneuvers

School Bus Lighting Effectiveness and Improvements: Results from a Driving Experiment

Future of Urban Mobility – New Concepts Instead of New Technologies?

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