Abstract
This paper presents a new approach to the fuel consumption reduction. This approach is based on vertical curve designs based on transition curves. The work presents selected curves, which are used for this purpose. Moreover, the results of comparative studies are shown for these curves, carried out in order to compare the possible reduction of fuel consumption in vertical curves designed using both conventional and proposed methods. Numerical studies were based on German engineering guidelines. In the case of vertical arcs formed by transition curves, fuel consumption indexes prove to be significantly lower than in curves based on a grade line consisting of straight lines with parabolic arcs. The obtained results indicate the advisability of forming vertical curves using transition curves.
Highlights
A very important problem is the reduction of fuel consumption and exhaust emission
This paper proposes an approach that relies on a suitable forming of vertical curves geometry
Fuel consumption reduction is possible by means of reducing gradients, which means either the necessity to extend the distance between specified points, or departure from the recommended grade line adjustment to the vertical layout of the land
Summary
A very important problem is the reduction of fuel consumption and exhaust emission. This is the object of consideration in many works, including the following papers (Ahn et al 2002; Bastani et al 2012; Jakimavičius, Burinskienė 2014; Mickūnaitis et al 2007; Oprešnik et al 2011; Várhelyi 2002). Fuel consumption reduction is possible by means of reducing gradients, which means either the necessity to extend the distance between specified points, or (for a fixed route run in a general layout) departure from the recommended grade line adjustment to the vertical layout of the land. In the latter case, a possible direct consequence of this procedure would be the increased scale of necessary earthworks, the need to build tunnels or flyovers, which would increase the route construction costs. The limited volume of the paper does not allow for analysis of these aspects
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
