Impact of introducing longer and heavier vehicles on regional consumer price index and Spanish road freight transport system

This paper applies an integrated modeling approach to the case of Spain; the approach is based on a random utility-based multiregional input-output model and a road transport network model for assessing the effect of introducing longer and heavier vehicles (LHVs) on the regional consumer price index (CPI) and on the transportation system. The approach strongly supports the concept that changes in transport costs derived from the LHV allowance as well as the economic structure of regions have direct and indirect effects on the economy and on the transportation system. Results show that the introduction of LHVs might reduce prices paid by consumers for a representative basket of goods and services in the regions of Spain and would also lead to a reduction in the regional CPI. In addition, the magnitude and extent of changes in the transportation system are estimated by using the commodity-based structure of the approach to identify the effect of traffic changes on traffic flows and on pollutant emissions over the whole network.

Road fright transport decoupling: A comparative analysis between the United Kingdom and Spain

Economic growth has traditionally been linked to road freight transport demand, leading to a steady rise in social and environmental impacts. Concern about this problem has caused the EU to promote a decoupling strategy aimed at boosting sustainable development in European countries by improving the efficiency of transport systems without curbing economic growth. Over the last few years empirical evidence in some countries such as the United Kingdom has shown an increase in GDP while the volume of road freight traffic has remained stable or even decreased. This paper compares recent decoupling trends by analyzing the evolution of road tonne-kms/GDP relationship in the United Kingdom and Spain from 1999 to 2007. This comparison seeks to identify the main differences and key drivers of decoupling in both countries. We first provide an overview of the divergences between both economic structures and levels of road transport intensity. Then we conduct a decomposition analysis in order to identify the variables that explain the evolution of truck traffic per unit of GDP in each country. The results show that the increasing share of services in GDP has substantially contributed to decreasing road transport demand in both cases. Changes in road transport intensity due to improvements in logistic and supply chain management have been more successful in the UK than in Spain.

An integrated modeling approach to assess the impact on road freight transport demand of allowing longer and heavier vehicles (LHVs) in Spain

The assessment on introducing Longer and Heavier Vehicles (LHVs) on the road freight transport demand is performed in this paper by applying an integrated modeling approach composed of a Random Utility-Based Multiregional Input-Output model (RUBMRIO) and a road transport network model. The approach strongly supports the concept that changes in transport costs derived from the LHVs allowance as well as the economic structure of regions have both direct and indirect effects on the road freight transport system. In addition, we estimate the magnitude and extent of demand changes in the road freight transportation system by using the commodity-based structure of the approach to identify the effect on traffic flows and on pollutant emissions over the whole network of Spain by considering a sensitivity analysis of the main parameters which determine the share of Heavy-Goods Vehicles (HGVs) and LHVs. The results show that the introduction of LHVs will strengthen the competitiveness of the road haulage sector by reducing costs, emissions, and the total freight vehicles required.

Trends in mortality due to motor vehicle traffic accident injuries between 1987 and 2011 in a Spanish region (Comunitat Valenciana)

Objective: To analyse the time evolution of the rates of mortality due to motor vehicle traffic accidents (MVTA) injuries that occurred among the general population of Comunitat Valenciana between 1987 and 2011, as well as to identify trend changes by sex and age group. Methods: An observational study of annual mortality trends between 1987 and 2011. We studied all deaths due to MVTA injuries that occurred during this period of time among the non-institutionalised population residing in Comunitat Valenciana (a Spanish Mediterranean region that had a population of 5,117,190 inhabitants in 2011). The rates of mortality due to MVTA injuries were calculated for each sex and year studied. These rates were standardised by age for the total population and for specific age groups using the direct method (age-standardised rate – ASR). Joinpoint regression models were used in order to detect significant trend changes. Additionally, the annual percentage change (APC) of the ASRs was calculated for each trend segment, which is reflected in statistically significant joinpoints. Results: For all ages, ASRs decrease greatly in both men and women (70% decrease between 1990 and 2011). In 1990 and 2011, men have rates of 36.5 and 5.2 per 100,000 men/year, respectively. In the same years, women have rates of 8.0 and 0.9 per 100,000 women/year, respectively. This decrease reaches up to 90% in the age group 15–34 years in both men and women. ASR ratios for men and women increased over time for all ages: this ratio was 3.9 in 1987; 4.6 in 1990; and 5.8 in 2011. For both men and women, there is a first significant segment (p < 0.05) with an increasing trend between 1987 and 1989–1990. After 1990, there are 3 segments with a significant decreasing APC (1990–1993, 1993–2005 and 2005–2011, in the case of men; and 1989–1996, 1999–2007 and 2007–2011, in the case of women). Conclusion: The risk of death due to motor vehicle traffic accidents injuries has decreased significantly, especially in the case of women, for the last 25 years in Comunitat Valenciana, mainly as of 2006. This may be a consequence of the road-safety measures that have been implemented in Spain and in Comunitat Valenciana since 2004. The economic crisis that this country has undergone since 2008 may have also been a contributing factor to this decrease. Despite the decrease, ASR ratios for men and women increased over time and it is still a high-risk cause of death among young men. It is thus important that the measures that helped decrease the risk of death are maintained and improved over time.

Segurança rodoviária infantil : conhecimentos e atitudes dos pais na utilização do sistema de retenção no recém-nascido

Enquadramento: A segurança é um direito da criança, que deve ser assegurado pelos pais e sociedade em geral, pois devido à sua vulnerabilidade estão sujeitas a um maior risco de lesões e morte. O transporte seguro de recém-nascidos/crianças em automóveis é uma preocupação, pois os acidentes de viação são a principal causa de mortalidade e morbilidade nesta faixa etária. Nos acidentes rodoviários, o uso correto de um sistema de retenção para crianças (SRC), desde o nascimento, constitui uma forma eficaz de proteção. Objetivos: Caracterizar os conhecimentos e atitudes dos pais no uso do SRC; analisar a influência do processo de aquisição e de informação dos pais sobre o uso do SRC; identificar a relação entre as variáveis sociodemográficas dos pais e o uso de SRC; determinar se os conhecimentos são mediadores das atitudes dos pais na utilização do SRC. Métodos: Estudo quantitativo, transversal, descritivo e correlacional, realizado numa amostra não probabilística, por conveniência de 112 pais de recém-nascidos, mães com média de idade de 30,37 anos (Dp=5,63) e pai 33,91 (Dp=6,09). Para recolha de informação utilizou-se um questionário, construído para o efeito, que os pais preencheram 24-48h após o parto durante os meses de março a maio de um centro hospitalar da região norte de Portugal. Resultados: Maioritariamente tinham como escolaridade o ensino secundário e entre 1 a 4 filhos. O SRC fazia parte do ―enxoval‖ do bebé em 54,5% dos participantes, destes, 72,3% já o tinha experimentado no automóvel e pretendiam usá-lo na alta desde a maternidade 97,3%. Contudo, apurou-se que apenas 47,3% o faria de forma adequada, apesar de 83% referir conhecer a legislação e todos reconhecerem que previne lesões em caso de acidente e 67% admitir ter conhecimentos adequados sobre SRC. Concluiu-se haver relação entre os conhecimentos e a idade e a escolaridade das mães, e pelos resultados obtidos, inferimos que melhores conhecimentos conduzem a melhores atitudes na utilização do SRC. Conclusões: Os resultados indicam que os conhecimentos dos pais sobre o uso adequado de SRC continuam insuficientes. Este facto justifica o investimento no ensino, treino e preparação dos pais para a alta segura desde a maternidade, momento particularmente sensível, e que será determinante nas atitudes de promoção da segurança rodoviária das crianças e adolescentes. Palavras-chave: Segurança; Recém-nascido; Sistema de retenção; Conhecimentos; Atitudes.

The effects of bicycle accommodations on bicycle/motor vehicle safety traffic operations. Final report.

Federal Highway Administration, Washington, D.C.

Estimating the injury-reducing benefits of ejection-mitigating glazing.

Mode of access: Internet.

The economics of reducing the county road system: three case studies in Iowa. Final report.

Transportation Department, Office of University Research, Washington, D.C.

Analysis of the future effects of the fuel shortage and increased small car usage upon traffic deaths and injuries. Final report. Executive summary.

Transportation Department, Office of Systems Engineering, Washington, D.C.

No-passing zone treatments for special geometric and traffic operational situations. Final report.

Federal Highway Administration, Traffic Systems Division, Washington, D.C.

Planning and scheduling work zone traffic control - technical report. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.

Pedestrian injury causation parameters. Phase II. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

The effect of truck size and weight on accident experience and traffic operations. Volume II: traffic operations. Final report.

Federal Highway Administration, Washington, D.C.

Special training in injury coding. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Evaluation of minimum drinking age laws using the National Electronic Injury Surveillance System. Final report.

Mode of access: Internet.