Evaluation of Horizontal Curve Radius Effect on Driving Speed in Two Lane Rural Road. Pilot Study
| Autor: | Viktoras Vorobjovas, Mindaugas Šeporaitis, Audrius Vaitkus |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TE1-450
Computer science Site selection Poison control 020101 civil engineering 02 engineering and technology Automotive engineering 0201 civil engineering lcsh:TG1-470 design speed (vd) lcsh:Bridge engineering operating speed (v85) 0502 economics and business lcsh:Highway engineering. Roads and pavements Civil and Structural Engineering 050210 logistics & transportation design speed (Vd) horizontal curve low-volume road operating speed (V85) regional road Speed limit 05 social sciences Rural roads Building and Construction Radius Design speed Operating speed Predictive modelling |
| Zdroj: | The Baltic Journal of Road and Bridge Engineering; Vol 15, No 4 (2020): The Baltic Journal of Road and Bridge Engineering; 252-270 The Baltic Journal of Road and Bridge Engineering, Vol 15, Iss 4, Pp 252-270 (2020) |
| ISSN: | 1822-427X 1822-4288 |
| Popis: | This paper presents a case study of driving speed at horizontal curves in the regional road. The literature review of operating speed at horizontal curves in regional roads expresses the difference between design speed and driving speed. Driving speed was measured in ten horizontal curves on regional road No. 2610. Collected data was compared to the design speed, various design standards, and Operating Speed Prediction Models for traffic in low-volume roads. Based on result analysis, was proposed initial adjusted minimum radius of the horizontal curve based on operating speed. It is justified that proposed corrections based on operating speed ensure a credible speed limit effect on road safety. The performed experiment showed different tendencies comparing measured driving speed with permitted and design speeds. It was determined that dependent on specific curved section drivers tend to exceed posted speed limit from 17% to 98% of cases, and from 41% to 100% − the design speed in the horizontal curve. This research led to identifying the limitations of experimental research methodology. These limitations are related to experimental Site selection with different combinations of alignment elements, traffic, and accident data. A pilot study showed significant results and gave essential insights into the full-scale research plan. The results are expected to benefit both other researchers and the organisations responsible for the development and implementation of normative technical documents for road design. |
| Databáze: | OpenAIRE |
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