Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: economic impacts

Sortuj według:

Ogranicz wyniki do:

Impacts from transportation measures in national appraisal guidelines: coverage and practices

Holmen Rasmus Bøgh, Biesinger Benjamin, Hindriks Ivo

Archives of Transport

2022

Vol. 63, iss. 3

67--111

Transportation appraisal has a potential important role in prioritization of transportation investment projects and other transportation measures. Appraisal practices vary much over countries and time, but these differences are not fully known. More knowledge on the variation in practices may contribute to smoother knowledge exchange between countries and more informed choices in the further development of each national practice. In this paper, we present both an updated mapping and a meta-analysis of impact coverage in national appraisal guidelines for transportation measures and spatial measures more generally. Our updated mapping of impact coverage covers 18 national and regional guideline sets and 44 sorts of impact. It shows rather similar overall impact coverage in the reviewed guidelines for economic, social and environmental impacts. The most advanced appraisal practices are found in Northern and Western Europe and Oceania. We find that supplementary quantitative analyses are most common for economic impacts, while multi-criteria analyses are most common for environmental impacts. Our meta-analysis covers ours and 15 earlier impact mappings, jointly covering 42 countries and regions. In this examination, we show how impact coverage in appraisal practices has improved over time, particularly for environmental, user and wider economic impacts. The meta-analysis also reveals that Western and Northern European and Oceanian countries and dependencies have had the widest impact coverage from 1998 to 2020, both in CB and overall. To examine what characterize countries with broad and narrow impact coverage, we have applied econometric regression models that are linear (i.e. linear least squares), quasi-linear (i.e. Tobit) and fractional response-based (i.e. fractional probit and fractional logit). In these regression analyses, we control for study-specific characteristics and clustering the standard errors on countries. Our results show that the CB impact coverage tends to increase with economic wealth, equality and population size in developed countries, while we find no such patterns for overall impact coverage.

Economic modelling of the management of dredged marine sediments

Harrington J. R., Murphy J., Coleman M., Jordan D., Debuigne T., Szacsuri G.

Geology, Geophysics and Environment

2016

Vol. 42, no. 3

311--324

This paper presents and applies an economic model developed for the management of dredged marine sediments. The model predicts direct project costs and direct, indirect and induced economic impacts. The model is applied to analyse the economic aspect of the specific potential beneficial use of dredged sediment for land reclamation in an Irish context. The model results show the potential economic benefits to land reclamation of using dredged sediment including its value as a potential substitute for quarry based material and as an alternative to traditional offshore dredged sediment disposal, where appropriate. Analysis of other sediment management approaches including wetland creation, is also presented with the results for wetland creation indicating its potential, where appropriate, as a valuable alternative to offshore disposal. Indicative economic benefits are predicted by the model for the different dredge sediment management approaches analysed.

Oil price development and economic impacts on the transport sector

Riha Z., Tichy J., Skolilova P.

TTS Technika Transportu Szynowego

2012

R. 19, nr 9

463--469, CD

Oil prices one of the main factors influencing the national economy in the long run. Their development has been unpredictable in the last years and it will likely continue in the future. They will be influenced by the geopolitical situation, the development of the world economy and the problems of the European currency union can also have an impact. The paper aims at the development of oil and fuel prices and their impacts on carrier costs and the transport sector as a whole.

Ceny ropy jsou jedním z hlavních faktorů ovlivňujících národní ekonomiky i ekonomiku světovou. Jejich vývoj je v posledních letech obtížně predikovatelný a lze očekávat, že tomu tak bude i v budoucnu. Ceny ropy budou ovlivňovány mnoha nepředvídatelnými faktory, jako je geopolitická situace, vývoj HDP nebo problém Evropské měnové unie. Tento článek analyzuje ceny ropy a ukazuje, jak jejich růst v posledních letech ovlivňuje ceny pohonných hmot a náklady dopravců.