SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
The Journal of Transport & Health (JTH) is devoted to research on the many interactions between transport and health. These include, for instance:
- the impacts on public health and inequalities of:
- active modes of transport;
- noise and air pollution generated by transport;
- road traffic injuries;
- community severance;
- road danger and its reduction:
- actual safety and security hazards associated with transport;
- perceptions of danger and factors affecting these;
- factors affecting transport choices:
- urban form;
- location and accessibility of health and other facilities;
- age, health and disability;
- socio-economic inequalities;
- logistics systems, especially for food transport and distribution;
- tourism and leisure travel;
- synergies between sustainability and health impacts of transport;
- economic and health impact assessments; and
- policies that promote or discourage healthy and sustainable transport modes, transport systems and communities.
The journal aims to cover transport and health issues in all countries. Three particular aims of the journal are: to promote dialogue between the two research communities it serves; to improve the quality of data and the appropriate use of data; and to encourage transfer of research into practice.
Transport and Health Study Group (THSG)
JTH is formally affiliated with the Transport and Health Study Group (THSG). However, JTH is a scientific journal, and manuscripts submitted to JTH will therefore be considered on two factors - their scientific quality and the relevance of their content - and not on whether the study's findings conflict with current THSG policy. As the THSG prides itself on promoting evidence-based policies, there will be occasions when such policy needs to be reviewed because of emerging evidence.