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首頁> 美國衛(wèi)生研究院文獻(xiàn)>Data in Brief >Vehicle operating speeds in southwestern Colombia: An important database for the future implementation of optimization models for geometric design of roads in mountain topography
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Vehicle operating speeds in southwestern Colombia: An important database for the future implementation of optimization models for geometric design of roads in mountain topography

機(jī)譯：哥倫比亞西南部的車輛運行速度：一個重要數(shù)據(jù)庫用于未來實施山地地形道路幾何設(shè)計的優(yōu)化模型

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The essential objective of a road is framed in allowing the circulation of vehicles from a point of origin to a destination, being essential to fulfil completely this function, consider aspects such as: functionality, safety, economy, comfort, environmental integration and harmony or aesthetics. For this effect, a geometric design based on consistency must be achieved, which arranges the elements of the road and their geometric characteristics, helping to minimize adverse effects on the driver's expectations, perceiving homogeneity on the route, without abrupt variation in the level of attention necessary and thus be able to adapt to the changing geometric conditions of the road. In order to assess the consistency in the geometric design, different criteria and methodologies strongly related to the level of accident rates have been developed, which in turn are based on the analysis of the evolutions of the operating speeds. By virtue of the above, speed is therefore of vital importance to carry out any type of evaluation or analysis of traffic, since it is an important indicator of the quality of the service offered to users, because of it is function of the physical characteristics of the road and its environment. Among the main characteristics of vehicular traffic that can be studied from speed data, we have: the intensity of circulation, vehicle speeds and travel time, origin and destination of trips, vehicular accidents, among others. The purpose of this document is to present a database of speed obtained on a road located in the Pasto (Nari?o department) in southwestern Colombia. The analysed road sector has a total length of 27.5 km and is developed in a predominantly mountainous topography. The data collected corresponds to the geometric characteristics of the road, as well as the design, traffic and operating speeds of each element throughout the sector. The data series corresponds to 312 elements of the geometric design, which are located continuously along sector. The design and road speed for each element, was determined from the geometric characteristics of the road; meanwhile, the operating speed was determined using spot speed data, which was obtained from field measurements with the Bushnell Radar Gun. For the determination of the Operating Speed in each element of the layout and for each class of vehicle considered (cars, buses and two-axle trucks), in each direction of movement, a minimum sample size of 64 Spot Speed data was used. The speed dataset is of great importance, because it provides traffic and transport engineering with relevant information for investigations such as: analysis of traffic accidents, establishment of design elements, traffic operation plans, regulation and control, zones with speed problems, study of traffic flows and finally, the assignment of design speeds for similar and future projects.
機(jī)譯：道路的基本目標(biāo)是允許車輛從原產(chǎn)地到目的地的循環(huán)，這是完全實現(xiàn)這一功能的必要條件，考慮到：功能，安全，經(jīng)濟(jì)，舒適，環(huán)境一體化和和諧或美學(xué)等方面。為此，必須實現(xiàn)基于一致性的幾何設(shè)計，它可以排列道路的元素及其幾何特征，有助于最大限度地減少對駕駛員期望的不利影響，感知路線上的均勻性，而不會突然變化必要，因此能夠適應(yīng)改變道路的幾何條件。為了評估幾何設(shè)計的一致性，已經(jīng)開發(fā)出與事故率的水平強(qiáng)烈相關(guān)的不同標(biāo)準(zhǔn)和方法，這反過來基于分析操作速度的演變。憑借以上，速度至關(guān)重要，以便進(jìn)行任何類型的評估或交通分析，因為它是向用戶提供的服務(wù)質(zhì)量的重要指標(biāo)，因為它是物理特征的功能道路及其環(huán)境。在可以從速度數(shù)據(jù)中研究的車輛交通的主要特征中，我們有：旅行，旅行時間和旅行時間，旅行的起源和目的地，車輛事故等。本文檔的目的是在哥倫比亞西南部位于焦點（Nari?o部門）的道路上呈現(xiàn)速度數(shù)據(jù)庫。分析的道路部門的總長度為27.5公里，是主要的山地地形。收集的數(shù)據(jù)對應(yīng)于道路的幾何特征，以及整個扇區(qū)中每個元素的設(shè)計，流量和操作速度。數(shù)據(jù)系列對應(yīng)于幾何設(shè)計的312個元素，其沿扇區(qū)連續(xù)地定位。每個元件的設(shè)計和道路速度從道路的幾何特征確定;同時，使用點速度數(shù)據(jù)確定操作速度，該點速度數(shù)據(jù)是用灌木雷達(dá)槍從現(xiàn)場測量獲得的。為了確定布局的每個元件中的操作速度和針對每類車輛考慮（汽車，公共汽車和雙軸卡車），在每個運動方向上，使用64個點速度數(shù)據(jù)的最小樣本大小。速度數(shù)據(jù)集具有重要意義，因為它提供了交通和運輸工程，具有相關(guān)信息的調(diào)查，例如：交通事故分析，建立設(shè)計要素，交通運營計劃，調(diào)控，帶速度問題的區(qū)域，交通流動研究最后，為類似和未來項目分配設(shè)計速度。

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