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http://dx.doi.org/10.12652/Ksce.2015.35.3.0607

Determination of Dimension of Vertical Curve Elements at Parking Lot Ramps  

Kwon, Sung-Dae (Cheonnam National University)
Kim, Yoon-Mi (Cheonnam National University)
Hong, Jeong-Pyo (Korea Expressway Corporation)
Ha, Tae-Jun (Cheonnam National University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.35, no.3, 2015 , pp. 607-616 More about this Journal
Abstract
The demand for cars has been so steadily increasing based on the economic growth that the number of registered cars reached 18,870,000 as of the end of December, 2012. Due to this, the demand for the parking lots also rises continuously. Because of the limited ground space, the buildings ever becoming larger, and the trend of underground parking spaces, recent parking spaces are generally constructed underground. Accordingly, the parking lot ramps slope is limited to less than 17% by relevant laws to ensure the driver safety. However, when a driver enters a parking lot ramps whose slope is slightly steep, he frequently experiences his car body colliding with ramp brackets and often sees the scratches on ramp floor. Thus, this study is intended to prevent any damage to a structure and to contribute to ensuring the riding comfort and safety of drivers and passengers by presenting the details of proper vertical curve to prevent the collision of vehicles with ramp brackets through a vertical analysis of the first and last parts of a parking lot ramps. Because it is necessary to decide the appropriate and suitable vertical slope of a parking lot ramps, this study first identified the problems through site inspection, targeting the parking lot ramps of large buildings frequently that are used by many random people. Next, the possibility of mutual collision was assessed through a theoretical analysis of the first and last parts of a parking lot ramps. Lastly, the vertical curve of a parking ramp was analyzed to estimate its details, which was presented in this study. In conclusion, if the vertical curve presented through this study is used, it will help prevent any damage to the cars and structures, ensure the riding comfort and safety of the drivers, and further reestablish the criteria for vertical installation of a parking lot ramps.
Keywords
Parking lot; Parking lot ramps; Vertical curve; Traffic safety; Slope;
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