INSTRUCTIONS FOR AUTHORS

Transcription

1 INSTRUCTIONS FOR AUTHORS In this docuent authors wi find instructions for the preparation of papers according to the standard forat required for their pubication. 1. LANGUAGES The officia conference anguages are Spanish, Portuguese and Engish. Papers wi be accepted in any of these anguages for presentation at the conference and pubication in the conference proceedings. 2. FORMAT Eectronic fies shoud be in Microsoft WORD for Windows Paper size Margins Spacing Font Letter size Letter (8 ½ inches x 11 inches) Upper 1 inch Lower 1 inch Left 1 inch Right ¾ inch A text, tabes and figures ust be contained within the above argin iits Singe. Ties New Roan. Main text and tites 12 pt Abstract, key words, references, author s naes, affiiation and address 10 pt. Paragraph Indents No initia indents for new paragraphs One bank ine separation between paragraphs. Text ustification Copete eft and right argin ustification. Words shoud not be divided between ines with hyphens. Page nubering Do not nuber pages. Equations Shoud be written using the Equation Editor of Microsoft Word or iported into the text as a figure. Equations shoud be nubered sequentiay, the corresponding nuber appearing in brackets and to the right of the ast ine of the equation. Textua references to equations shoud be according to the equation nuber.

2 Tabes Tabes shoud not be incuded within the body of the text, but incuded at the end of the artice (see exape). Each tabe shoud have a tabe nuber and tite (in bod) paced iediatey above the tabe frae, ustified to the eft argin of the tabe frae, and In Ties New Roan 12 pt. Citation of the source and expanatory notes shoud appear iediatey beow the botto of the tabe frae, ustified to the eft of the tabe frae and in Ties New Roan 10 pt Units shoud be ceary indicated within the tabe. Any notes or expanations shoud appear at the foot of the tabe. Tabes shoud, where reevant, ake fu attribution to data/inforation sources. Figures Figures and graphicteria shoud be in back and white, provided in eectronic forat preferaby as Microsoft WORD iages, and incuded at the end of the paper. Each figure shoud have a nuber and tite (in bod) paced beow the body of the figure, ustified to the center of the page, and In Ties New Roan 12 pt (see exape) 3. LAYOUT OF PAPERS Papers shoud not exceed a tota of 12 pages in ength, incuding tite and abstract page, and a tabes, figures and references. First page Tite Capitas, bod, page centered Two ine space Author nae(s) Author affiiation Lower case with appropriate capitas, bod, centered. Nae of agency or institution, city, State, country, e-ai Separate ine for each author Lower case, centered Three ine space Abstract The word ABSTRACT, upper case, bod, centered Two ine space Abstract text Shoud not exceed 19 ines in ength One ine space Key words The words KEY WORDS, upper case, eft ustified; Sae ine: three key words, ower case, coa separated, eft ustified (in nora). Second and foowing pages These wi contain the text of the work, divided in chapters and sections,

3 Chapters shoud be nubered, with the nae written in upper case, bod ( 1. INTRODUCTION) Sections shoud be nubered with two digits with the nae written in tite stye, bod ( 4.2 Mode Vaidation) Provide two ines spacing before each capita or section heading, except at the top of a page. Provide one ine space after each heading and between paragraphs. A text shoud be eft and right ustified The text of the paper shoud confor to the foowing structure: Main body of text with nubered chapters and sections Acknowedgeents incuding financia support received. References Appendices Tabes Figures 4. REFERENCES References in the text to tabes and figures shoud be by nuber and not by tite Textua references to previous works (both pubished and unpubished) shoud use the standard convention of citing the author (s) surnae(s) and year of pubication: the atter in brackets If the reference itsef is in brackets, the year of pubication is coa separated In the case of oint authorship of three or ore, the citation is by surnae of first author foowed by the words et a, foowed by the year of pubication.. Exapes: Boduc (1994); De Cea et a (1995) The ist of References shoud be in aphabetica order Fu attribution shoud incude in the foowing order: Surnae and initias of first author, initias and surnae of second and subsequent authors, coa separated. Year of pubication within brackets in the case of severa pubications by the sae author in a given year, these shoud be isted with ower case etter suffixes: a, b, c, etc. Tite of work book or onograph in itaics - Artice in ourna or series in nora Nae of ourna or series in itaic, voue nuber or series nuber in nora, page nubers In the case of a book or onograph, the tite is foowed by the nae of the pubisher and pace of pubication. Exapes: Boduc, D. (1994) A practica technique to estiate utinoia probit odes in transportation. Docuento de Trabao, Institut Nationa de a Statistique et des Etudes Econoiques, Quebec.

4 Citra (1990a) Estudio anáisis operaciona de paraderos de ocooción coectiva. Infore Fin Ministerio de Transportes y Teecounicaciones. Citra Ltda., Santiago. De Cea, J., J.E. Fernández and M. Barquín (1995) Diseño de un sistea de servicios aientadores bus-etro. Apuntes de Ingeniería 18, Dodgson, J.S. and Y. Katsouacos (1988) Modes of copetition and the effect of bus service dereguation. In J.S. Dodgson and N. Topha (eds.), Bus Dereguation and Privatisation: An Internationa Perspective. Avebury, Adershot. McFadden, D. (1981) Econoetric odes of probabiistic choice. In C. Manskiand D. McFadden (eds), Structura Anaysis of Discrete Data: With Econoetric Appications. The MIT Press, Cabridge, Mass. Ortúzar, J. de D., and L.G. Wiusen (2001) Modeing Transport: Third Edition. John Wiey and Sons, Chichester. Ross, P. and J. Gibson (1987) Coparación experienta de contro dináico y por panes prefados de una red de seáforos en e centro de Santiago. Actas de Tercer Congreso Chieno de Ingeniería de Transporte, Concepción, Noviebre. SECTRA (1984) Manua de Diseño y Evauación de Proyectos de Viaidad Urbana. Secretaría Eecutiva de a Coisión de Transporte, Santiago. Vigouroux, C. (1989) Expanatory Anaysis in the Estiation of Transport Cost Functions for European Raiways. MSc Thesis, Institute for Transport Studies, University of Leeds. 6. POSTERS PANAM XIII wi provide: Posterboard (121 c (4 ft) high and 244 c (8 ft) wide), Chair, Tabe and Pushpins. Posters shoud be prepared as a singe sheet to faciitate hanging or, aternativey, as a set of 11 inches by 17 inches individua pages. The use of individua pages of A4 or 8 ½ inches by 11 inches is not recoended, though it ay be accepted if deeed egibe. The conference organizers reserve the right to not dispay posters which do not confor to these genera guideines. Layout and content forat are at the discretion of the author. However, pease consider the foowing suggestions: Tite of poster thee to be paced at top of poster Nae of author(s), affiiation, eai addresses paced beow tite Make axiu use of coour and graphics Text size shoud be arge enough to be read at a cofortabe viewing distance. Posters shoud be handed in to the Conference Support Desk iediatey after registration at the Conference. For further inforation pease contact the Conference Secretariat at: panaxiii@rpi.edu

5 MODELING COMMERCIAL VEHICLE EMPTY TRIPS WITH A FIRST ORDER TRIP CHAIN MODEL José Hoguín-Veras Rensseaer Poytechnic Institute Troy, New York, United States of Aerica, hv@rpi.edu and Een Thorson Rensseaer Poytechnic Institute Troy, New York, United States of Aerica, thorse@rpi.edu ABSTRACT In this paper, new atheatica foruations that depict the fow of epty coercia vehices as a function of a given atrix of coodity fows were deveoped. These foruations are based on probabiity principes and spatia interaction concepts. The odes are based on the concept of order of a trip chain, defined as the nuber of additiona stops with respect to the priary trip, and provide a statistica ink between the first order and higher order trip chains. Three different destination choice probabiity functions were hypothesized based on different assuptions about the destination choice process. One of these foruations incuded a eory coponent, that takes into account the aount of trave aready done in the destination choice process. An exape, based on data fro an origin-destination study in Guateaa City, is incuded to show the practicaity of the proposed odes. The nuerica resuts indicated a sight superiority of the foruation that takes into account the ength of the previous trip. In a cases, this ode outperfored the previous odes which sees to be an indication of the reasonabeness of its fundaenta assuptions and specificay of the benefits of incuding a eory function. The paper aso provides epirica evidence of the iportance of odeing epty trips. The Root Mean Squared Error of the estiation increased between 57% and 83%, with respect to the best epty trip ode, if epty trips are not expicity odeed. KEY WORD: Freight deand odeing, epty trips, trip chains

6 x=/a x=/a i i a) Loaded trips between i and Legend: Aternative destinations after copetion of priary trip b) Loaded trips between and i Figure 1: Scheatic of coercia vehice trip chains

7 Tabe 1: Foruations considered in this paper 1) E ( z ) = + px (Noortan and van Es' ode) a 2) E( z E / ) h e 3) E( z E / ) ( di ) e h i i ( d ( d ) 4) E( z E / ) ( d ) h ( d + dhi) 5) E( z E / ) ( d d ) h i i + i i ) hi