Road weather station acting as a wireless service hotspot for vehicles

Mäenpää, Kari; Sukuvaara, Timo; Ylitalo, Riika; Nurmi, Pertti; Atlaskin, Evgeny

doi:10.1109/iccp.2013.6646101

Cited by 8 publications

(8 citation statements)

References 2 publications

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“…The Traffic Light Controller is considered to have a SPaT (Signal Phase and Timing) interface, thus able to generate and transmit the standardized SPaT and other associated messages such as GID (Geographical Information Data) messages [34], [35]. Moreover in vehicular networking, the infrastructure, such as traffic lights, is used to disseminate updated and relevant weather information as they are local-based and can be easily obtained from local weather stations or through V2I communications [36]. In this approach the Traffic Light Controller is also in charge with providing wind information.…”

Section: A Overviewmentioning

confidence: 99%

Vehicular-Communications-Based Speed Advisory System for Electric Bicycles

Tal

Ciubotaru

Muntean

2016

IEEE Trans. Veh. Technol.

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Smart transportation, an important dimension of smart cities, includes both intelligent and "green" transportation solutions. Cycling, as one of the most sustainable form of transportation, is and should be an important component of the smart cities. Electric bicycles, the most popular electric vehicles, subscribe to this type of transportation. They have several advantages when compared to traditional bicycles, but also issues that relate to battery limited capacity and long periods of charging. Consequently energy-efficient solutions for electric bicycles are of very high research interest. Research on vehicular communications-based energy-efficient solutions for electric vehicles is still in early stages. Among electric vehicles, electric bicycles distinguish themselves as a special class as they have different characteristics and road-related requirements. This paper proposes a novel vehicular communications-based speed advisory system for electric bicycles. The solution recommends strategic riding (i.e. the appropriate speed) when bicycles are approaching a signaled intersection to avoid high power consumption scenarios. The proposed approach includes a Fuzzy Logic-based wind-aware speed adaptation policy, as among all the other vehicles, bicycles are mostly affected by the wind. Experimental results based on a real test-bed and extensive simulations-based testing demonstrate that by using the proposed solution significant energy savings are recorded. In addition, an analysis on comfort-related metrics shows that the proposed solution can also contribute to improving the cycling experience.

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Section: A Overviewmentioning

confidence: 99%

Vehicular-Communications-Based Speed Advisory System for Electric Bicycles

Tal

Ciubotaru

Muntean

2016

IEEE Trans. Veh. Technol.

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“…Previous studies evaluated the performance of existing sensing technologies, e.g. RCM-411 is accurate in friction level, and road surface status detection [9,11,12], DSC-111 can provide accurate surface state measurement. Still, the friction detection of DST-111 is not precise [7], etc.…”

Section: Introductionmentioning

confidence: 99%

“…Some of these technologies have already been employed for real-time road monitoring implementations, e.g. Road Weather Information Station (RWIS) in the US and other countries [11,[13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Basically, such sensing technologies can sense road surface state (dry, moist, wet, icy, snowy/frosty or slushy), pavement surface temperature, air temperature and relative humidity and etc. Previous studies evaluated the performance of the most existing sensing technologies, e.g., RCM-411 is accurate in friction level, and road surface status detection [8,10,11], DSC-111 can provide accurate surface state measurement, but the friction detection of DST-111 is not precise [6], etc. Some of these technologies have already been employed for real-time road monitoring implementations, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Time‐aware gated recurrent unit networks for forecasting road surface friction using historical data with missing values

Cui

Wang

et al. 2020

IET Intelligent Transport Systems

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An accurate road surface friction prediction algorithm can enable intelligent transportation systems to share timely road surface condition to the public for increasing the safety of the road users. Previously, scholars developed multiple prediction models for forecasting road surface conditions using historical data. However, road surface condition data cannot be perfectly collected at every time stamp, e.g. the data collected by on-vehicle sensors may be influenced when vehicles cannot travel due to economic cost issue or weather issues. Such resulted missing values in the collected data can damage the effectiveness and accuracy of the existing prediction methods since they are assumed to have the input data with a fixed temporal resolution. This study proposed a road surface friction prediction model employing a Gated Recurrent Unit networkbased decay mechanism (GRU-D) to handle the missing values. The evaluation results present that the proposed GRU-D networks outperform all baseline models. The impact of missing rate on predictive accuracy, learning efficiency and learned decay rate are analyzed as well. The findings can help improve the prediction accuracy and efficiency of forecasting road surface friction using historical data sets with missing values, therefore mitigating the impact of wet or icy road condition on traffic safety.

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“…This is especially critical when the technology update does not only involve the vehicles, but the roadway infrastructure. This is the case for applications like CoMoSeF [3] or traffic management systems [4] that are design to exchange information with roadside stations. In this category of communication systems, which is known as Vehicle-to-Infrastructure (V2I), only a significant amount of users can justify the investment to adapt the road according to the requirements.…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of a Low-Cost Digital Sign-Posts Architecture for ITS Applications

Fernandez-Laguia

Cano

Calafate

et al. 2016

Ad-Hoc, Mobile, and Wireless Networks

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Abstract. Integrating road signs information is becoming a critical goal for Intelligent Transportation Systems (ITS). Unlike other driving automation features, this capacity requires not only the vehicle, but also posts and infrastructure to be adapted thus involving an investment that can only be justified by a substantial number of users. In this paper we describe an architecture that aims to facilitate the introduction and deployment of this technology based on low cost devices as the digital sign-posts and the integration of smartphones as an alternative in-vehicle user-interface. Wireless communications based on IEEE 802.11 is used for the basic connectivity requirements. From the results obtained through an experimental evaluation, we show that, despite the smartphone constraints, we can achieve successful detection and recognition experiences at up to 90 km/h. Ultimately the experiment described confirms that the use of smartphones represents an opportunity to expand wireless technology in the traffic sign digitalisation area.

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Road weather station acting as a wireless service hotspot for vehicles

Cited by 8 publications

References 2 publications

Vehicular-Communications-Based Speed Advisory System for Electric Bicycles

Vehicular-Communications-Based Speed Advisory System for Electric Bicycles

Time‐aware gated recurrent unit networks for forecasting road surface friction using historical data with missing values

Experimental Evaluation of a Low-Cost Digital Sign-Posts Architecture for ITS Applications

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