Cette recherche se developpe selon deux axes interdependants de la politique tarifaire des transp... more Cette recherche se developpe selon deux axes interdependants de la politique tarifaire des transports en commun : le financement et la tarification. Elle presente : une description du cas d'etude (la ville de salvador de bahia au bresil); une discussion theorique de ses principaux aspects et une analyse de la politique tarifaire, a travers l'etude de ses actions. L'analyse de la politique tarifaire commence par l'evolution historique qui met en lumiere un ensemble d'actions a caractere general. A savoir, entre autres, la reorganisation economique du secteur, la division et la cartelisation du marche, les articulations entre la municipalite et les entreprises exploitantes, la subvention et la taxation des tarifs. Elle est suivie d'une analyse des actions a caractere micro sur le calcul tarifaire qui souligne les principaux changements survenus et les confrontent avec l'ensemble d'informations et de donnees dont disposaient a l'epoque les organismes gestionnaires du transport collectif. Vient ensuite l'evaluation de l'impact de ces actions qui debute par une caracterisation de la structure economique du marche, de sa methode de calcul et de sa structure tarifaire. Ceci sert de base a l'analyse des couts et des tarifs fixes (y compris taxations et subventions). Pour la periode 1979-1984 nous nous livrons a une confrontation evolutive des biais et des ecarts observes ponctuellement a la lumiere d'autres informations specifiques. Nous les comparons aux tarifs, aux taux d'utilisation des transports collectifs et aux budgets des menages dans le but d'evaluer l'impact de la politique tarifaire sur les deplacements des personnes. Enfin, nous comparons les resultats de nos travaux a nos hypotheses de depart et subsidiairement nous essayons de repondre a des questions qui leur sont afferentes.
Environmental footprints and eco-design of products and processes, 2019
In Brazil, the transportation sector is based on diesel, gasoline and ethanol consumption for the... more In Brazil, the transportation sector is based on diesel, gasoline and ethanol consumption for the road transport, which is responsible for 32.4% of total energy consumed, corresponding to 82.7 Mtep. Considering this context, this chapter aims to evaluate the carbon footprint of 52 mil kilometers of the Brazilian highway network. Real data was obtained from a recent National Traffic Counting Plan which considers a qualifying counting of vehicles, during 24 h in a 7 days period, and an origin and destination interviews performed in a total of 300 traffic survey stations. More than 17 million vehicles were counted and classified and 1,384,330 interviews were obtained. From the estimation of the annual average daily traffic for the roads under federal operation and management rules, the carbon footprint was evaluated using a bottom-up approach. The carbon footprint analysis presents more than 8500 TgCO2eq emissions per day, with the major responsibility of light-duty vehicle flow which uses gasoline, ethanol and diesel as fuels.
Proceedings of the Institution of Civil Engineers, Jun 26, 2019
The aim of this paper is to present a modification of the trip distribution model and compare it ... more The aim of this paper is to present a modification of the trip distribution model and compare it with the traditional gravitational model, as well as with other models based on intervening opportun...
O objetivo deste trabalho e o de identifi car o papel dos sistemas de transportes por bondes e tre... more O objetivo deste trabalho e o de identifi car o papel dos sistemas de transportes por bondes e trens, enquanto servico publico que viabilizou a ocupacao do solo na Regiao Metropolitana do Rio de Janeiro (RMRJ), bem como melhor compreender o papel, evolucao e a importância do sistema de transporte publico no desenvolvimento das centralidades na regiao. Este estudo se estrutura sobre uma abordagem exploratoria e descritiva, a partir de uma investigacao sobre os eixos que apoiam uma melhor compreensao sobre o assunto, e de um estudo documental sobre a RMRJ. O trabalho evidenciou que os sistemas de bondes e o ferroviario, foram relevantes e viabilizadores para a ocupacao urbana, porem nao se mantiveram efi cientes quando a demanda se elevou e quando o sistema deu sinais de precarizacao.
This paper presents the utilization of mobile phone data for transport models, with spatial model... more This paper presents the utilization of mobile phone data for transport models, with spatial modeling of the study region in geographical units that allows the integration of aggregated call detail records (CDR) with demographic data and other sources. The algorithm used for the estimation of the origin–destination matrices obtained a distribution of the number of trips compatible with those of a household survey conducted in 2013. With the use of a one-year dataset, two mobility patterns were identified in Rio de Janeiro: home–work and weekend trips. Changes in mobility patterns because of an important road modification were also detected, demonstrating that the use of CDR for urban planning and monitoring is a robust and low-cost option.
Until five years ago the s c ene of public trans port in Braz ilian c ities was dominated by priv... more Until five years ago the s c ene of public trans port in Braz ilian c ities was dominated by privately operated bus es under loc al protec tive regulation. From 1996 on, however, this s c ene begun to c hange by the emergenc e of vans operators who c hallenged bus c artels and the barriers to entry impos ed by public authorities . I n this paper, a general overview of the pres enc e of vans in Braz ilian loc al public trans port is provided. Quantitative, regulatory and politic al fac ts are pres ented and analyz ed. Furthermore, pres ent trends related to regulatory polic ies c onc erning vans are as s es s ed and pos s ible developments regarding its pres enc e in pas s enger trans port markets are dis c us s ed.
Cette recherche se developpe selon deux axes interdependants de la politique tarifaire des transp... more Cette recherche se developpe selon deux axes interdependants de la politique tarifaire des transports en commun : le financement et la tarification. Elle presente : une description du cas d'etude (la ville de salvador de bahia au bresil); une discussion theorique de ses principaux aspects et une analyse de la politique tarifaire, a travers l'etude de ses actions. L'analyse de la politique tarifaire commence par l'evolution historique qui met en lumiere un ensemble d'actions a caractere general. A savoir, entre autres, la reorganisation economique du secteur, la division et la cartelisation du marche, les articulations entre la municipalite et les entreprises exploitantes, la subvention et la taxation des tarifs. Elle est suivie d'une analyse des actions a caractere micro sur le calcul tarifaire qui souligne les principaux changements survenus et les confrontent avec l'ensemble d'informations et de donnees dont disposaient a l'epoque les organismes gestionnaires du transport collectif. Vient ensuite l'evaluation de l'impact de ces actions qui debute par une caracterisation de la structure economique du marche, de sa methode de calcul et de sa structure tarifaire. Ceci sert de base a l'analyse des couts et des tarifs fixes (y compris taxations et subventions). Pour la periode 1979-1984 nous nous livrons a une confrontation evolutive des biais et des ecarts observes ponctuellement a la lumiere d'autres informations specifiques. Nous les comparons aux tarifs, aux taux d'utilisation des transports collectifs et aux budgets des menages dans le but d'evaluer l'impact de la politique tarifaire sur les deplacements des personnes. Enfin, nous comparons les resultats de nos travaux a nos hypotheses de depart et subsidiairement nous essayons de repondre a des questions qui leur sont afferentes.
Environmental footprints and eco-design of products and processes, 2019
In Brazil, the transportation sector is based on diesel, gasoline and ethanol consumption for the... more In Brazil, the transportation sector is based on diesel, gasoline and ethanol consumption for the road transport, which is responsible for 32.4% of total energy consumed, corresponding to 82.7 Mtep. Considering this context, this chapter aims to evaluate the carbon footprint of 52 mil kilometers of the Brazilian highway network. Real data was obtained from a recent National Traffic Counting Plan which considers a qualifying counting of vehicles, during 24 h in a 7 days period, and an origin and destination interviews performed in a total of 300 traffic survey stations. More than 17 million vehicles were counted and classified and 1,384,330 interviews were obtained. From the estimation of the annual average daily traffic for the roads under federal operation and management rules, the carbon footprint was evaluated using a bottom-up approach. The carbon footprint analysis presents more than 8500 TgCO2eq emissions per day, with the major responsibility of light-duty vehicle flow which uses gasoline, ethanol and diesel as fuels.
Proceedings of the Institution of Civil Engineers, Jun 26, 2019
The aim of this paper is to present a modification of the trip distribution model and compare it ... more The aim of this paper is to present a modification of the trip distribution model and compare it with the traditional gravitational model, as well as with other models based on intervening opportun...
O objetivo deste trabalho e o de identifi car o papel dos sistemas de transportes por bondes e tre... more O objetivo deste trabalho e o de identifi car o papel dos sistemas de transportes por bondes e trens, enquanto servico publico que viabilizou a ocupacao do solo na Regiao Metropolitana do Rio de Janeiro (RMRJ), bem como melhor compreender o papel, evolucao e a importância do sistema de transporte publico no desenvolvimento das centralidades na regiao. Este estudo se estrutura sobre uma abordagem exploratoria e descritiva, a partir de uma investigacao sobre os eixos que apoiam uma melhor compreensao sobre o assunto, e de um estudo documental sobre a RMRJ. O trabalho evidenciou que os sistemas de bondes e o ferroviario, foram relevantes e viabilizadores para a ocupacao urbana, porem nao se mantiveram efi cientes quando a demanda se elevou e quando o sistema deu sinais de precarizacao.
This paper presents the utilization of mobile phone data for transport models, with spatial model... more This paper presents the utilization of mobile phone data for transport models, with spatial modeling of the study region in geographical units that allows the integration of aggregated call detail records (CDR) with demographic data and other sources. The algorithm used for the estimation of the origin–destination matrices obtained a distribution of the number of trips compatible with those of a household survey conducted in 2013. With the use of a one-year dataset, two mobility patterns were identified in Rio de Janeiro: home–work and weekend trips. Changes in mobility patterns because of an important road modification were also detected, demonstrating that the use of CDR for urban planning and monitoring is a robust and low-cost option.
Until five years ago the s c ene of public trans port in Braz ilian c ities was dominated by priv... more Until five years ago the s c ene of public trans port in Braz ilian c ities was dominated by privately operated bus es under loc al protec tive regulation. From 1996 on, however, this s c ene begun to c hange by the emergenc e of vans operators who c hallenged bus c artels and the barriers to entry impos ed by public authorities . I n this paper, a general overview of the pres enc e of vans in Braz ilian loc al public trans port is provided. Quantitative, regulatory and politic al fac ts are pres ented and analyz ed. Furthermore, pres ent trends related to regulatory polic ies c onc erning vans are as s es s ed and pos s ible developments regarding its pres enc e in pas s enger trans port markets are dis c us s ed.
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