Approximate perspective design of roads

Taiganidis, I; Kanellaidis, G

dc.contributor.author	Taiganidis, I	en
dc.contributor.author	Kanellaidis, G	en
dc.date.accessioned	2014-03-01T11:44:28Z
dc.date.available	2014-03-01T11:44:28Z
dc.date.issued	1999	en
dc.identifier.issn	0733-947X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36958
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Transportation Science & Technology	en
dc.subject.other	Approximation theory	en
dc.subject.other	Computer simulation	en
dc.subject.other	Design	en
dc.subject.other	Drawing (graphics)	en
dc.subject.other	Equal tangent parabola	en
dc.subject.other	Horizontal alignments	en
dc.subject.other	Road geometric design	en
dc.subject.other	Vanishing points	en
dc.subject.other	Vertical alignments	en
dc.subject.other	Roads and streets	en
dc.title	Approximate perspective design of roads	en
heal.type	other	en
heal.identifier.primary	10.1061/(ASCE)0733-947X(1999)125:4(314)	en
heal.identifier.secondary	http://dx.doi.org/10.1061/(ASCE)0733-947X(1999)125:4(314)	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	Coordination of horizontal and vertical alignments is an important principle in road geometric design, and it should begin with preliminary design. Perspective drawings and sketches are considered to be effective means for evaluating this coordination. In the present paper, an approximate method is developed for the quick and adequately accurate drawing of the perspective of a road, and a relevant example is given. The method is based on the use of vanishing points and the properties of an equal-tangent parabola. It is assumed that the spatial curve of the centerline of a road element - defined as a road section along which the horizontal and vertical curvatures are constant - is an equal-tangent parabola. The proposed method does not substitute computer-aided drawing of the perspective, which is essential during the detailed design stage. It is nevertheless judged to be useful and more appropriate during the preliminary design stage, for it allows an engineer, designer, or researcher to reliably trace the perspective view of various horizontal and vertical alignment combinations and to obtain the desired coordination.	en
heal.publisher	ASCE-AMER SOC CIVIL ENGINEERS	en
heal.journalName	Journal of Transportation Engineering	en
dc.identifier.doi	10.1061/(ASCE)0733-947X(1999)125:4(314)	en
dc.identifier.isi	ISI:000080938100006	en
dc.identifier.volume	125	en
dc.identifier.issue	4	en
dc.identifier.spage	314	en
dc.identifier.epage	323	en