Transport Policy

Transport Policy is an international refereed journal aimed at improving quality of transport policy and strategy analysis, designing and sharing innovative policy and management practices, and application bridging the gap between theory and practice in transport. Its subject areas reflect the concerns of policymakers in government, management strategists in industry, and the public at large, providing independent, original and rigorous analysis to understand how policy and strategy decisions have been made, monitor their effects, and suggest how they may be improved. The journal covers the entire transport sector including all modes: air, maritime, urban, intercity, domestic and international transport economics, policy and strategy issues, etc. Policy and strategy concerns in transport are wide and cover safety, efficiency, economic development, infrastructure, environment, energy, land-use, equity and access. Papers are expected to have clear policy and strategy relevance, to analyze/evaluate transport policies and strategies using up-to-date research methods (both quantitative and qualitative). Papers are also welcomed which focus on understanding the nature and influences affecting policy and strategy change, including technical, attitudinal, institutional, structural and political constraints, including those which provide a comparative analysis. Papers focusing only on methodological development without clear policy focus and relevance will NOT be considered. However, we welcome qualitative policy papers that build on the body of literature, and show clear contributions over and above what exist in the literature, and/or widely applicable to other jurisdictions. (Qualitative papers will NOT be considered if the author(s) advocate certain policy positions without presenting a rigorous framework of analysis.) Papers that focus entirely on individual case studies are more appropriate for our sister journal Case Studies in Transport Policy.

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Category	Year	Quartile
Geography, Planning and Development	1999	Q2
Geography, Planning and Development	2000	Q1
Geography, Planning and Development	2001	Q1
Geography, Planning and Development	2002	Q1
Geography, Planning and Development	2003	Q1
Geography, Planning and Development	2004	Q1
Geography, Planning and Development	2005	Q1
Geography, Planning and Development	2006	Q1
Geography, Planning and Development	2007	Q1
Geography, Planning and Development	2008	Q1
Geography, Planning and Development	2009	Q1
Geography, Planning and Development	2010	Q1
Geography, Planning and Development	2011	Q1
Geography, Planning and Development	2012	Q1
Geography, Planning and Development	2013	Q1
Geography, Planning and Development	2014	Q1
Geography, Planning and Development	2015	Q1
Geography, Planning and Development	2016	Q1
Geography, Planning and Development	2017	Q1
Geography, Planning and Development	2018	Q1
Geography, Planning and Development	2019	Q1
Geography, Planning and Development	2020	Q1
Geography, Planning and Development	2021	Q1
Geography, Planning and Development	2022	Q1
Geography, Planning and Development	2023	Q1
Law	1999	Q1
Law	2000	Q1
Law	2001	Q1
Law	2002	Q1
Law	2003	Q1
Law	2004	Q1
Law	2005	Q1
Law	2006	Q1
Law	2007	Q1
Law	2008	Q1
Law	2009	Q1
Law	2010	Q1
Law	2011	Q1
Law	2012	Q1
Law	2013	Q1
Law	2014	Q1
Law	2015	Q1
Law	2016	Q1
Law	2017	Q1
Law	2018	Q1
Law	2019	Q1
Law	2020	Q1
Law	2021	Q1
Law	2022	Q1
Law	2023	Q1
Transportation	1999	Q2
Transportation	2000	Q1
Transportation	2001	Q2
Transportation	2002	Q2
Transportation	2003	Q1
Transportation	2004	Q1
Transportation	2005	Q1
Transportation	2006	Q1
Transportation	2007	Q1
Transportation	2008	Q1
Transportation	2009	Q1
Transportation	2010	Q1
Transportation	2011	Q1
Transportation	2012	Q1
Transportation	2013	Q1
Transportation	2014	Q1
Transportation	2015	Q1
Transportation	2016	Q1
Transportation	2017	Q1
Transportation	2018	Q1
Transportation	2019	Q1
Transportation	2020	Q1
Transportation	2021	Q1
Transportation	2022	Q1
Transportation	2023	Q1

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	0.303
2000	0.777
2001	0.436
2002	0.443
2003	1.341
2004	1.034
2005	1.088
2006	0.923
2007	1.094
2008	1.227
2009	1.451
2010	1.135
2011	1.200
2012	1.247
2013	1.579
2014	1.458
2015	1.403
2016	1.348
2017	1.510
2018	1.520
2019	1.652
2020	1.687
2021	1.732
2022	1.852
2023	1.742

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	20
2000	30
2001	28
2002	27
2003	30
2004	32
2005	53
2006	48
2007	47
2008	40
2009	40
2010	54
2011	104
2012	113
2013	138
2014	141
2015	116
2016	149
2017	106
2018	182
2019	202
2020	187
2021	243
2022	280
2023	218

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	0.278
Cites / Doc. (4 years)	2000	0.717
Cites / Doc. (4 years)	2001	0.455
Cites / Doc. (4 years)	2002	0.647
Cites / Doc. (4 years)	2003	1.057
Cites / Doc. (4 years)	2004	1.148
Cites / Doc. (4 years)	2005	1.103
Cites / Doc. (4 years)	2006	1.289
Cites / Doc. (4 years)	2007	1.761
Cites / Doc. (4 years)	2008	1.878
Cites / Doc. (4 years)	2009	1.910
Cites / Doc. (4 years)	2010	2.669
Cites / Doc. (4 years)	2011	3.006
Cites / Doc. (4 years)	2012	2.983
Cites / Doc. (4 years)	2013	2.804
Cites / Doc. (4 years)	2014	3.081
Cites / Doc. (4 years)	2015	3.147
Cites / Doc. (4 years)	2016	3.339
Cites / Doc. (4 years)	2017	3.415
Cites / Doc. (4 years)	2018	4.012
Cites / Doc. (4 years)	2019	4.769
Cites / Doc. (4 years)	2020	5.728
Cites / Doc. (4 years)	2021	6.343
Cites / Doc. (4 years)	2022	7.345
Cites / Doc. (4 years)	2023	7.365
Cites / Doc. (3 years)	1999	0.278
Cites / Doc. (3 years)	2000	0.652
Cites / Doc. (3 years)	2001	0.351
Cites / Doc. (3 years)	2002	0.641
Cites / Doc. (3 years)	2003	1.153
Cites / Doc. (3 years)	2004	1.059
Cites / Doc. (3 years)	2005	1.146
Cites / Doc. (3 years)	2006	1.217
Cites / Doc. (3 years)	2007	1.624
Cites / Doc. (3 years)	2008	1.838
Cites / Doc. (3 years)	2009	1.874
Cites / Doc. (3 years)	2010	2.441
Cites / Doc. (3 years)	2011	2.769
Cites / Doc. (3 years)	2012	2.495
Cites / Doc. (3 years)	2013	2.683
Cites / Doc. (3 years)	2014	2.868
Cites / Doc. (3 years)	2015	2.747
Cites / Doc. (3 years)	2016	3.038
Cites / Doc. (3 years)	2017	3.281
Cites / Doc. (3 years)	2018	4.016
Cites / Doc. (3 years)	2019	4.625
Cites / Doc. (3 years)	2020	5.282
Cites / Doc. (3 years)	2021	6.257
Cites / Doc. (3 years)	2022	7.658
Cites / Doc. (3 years)	2023	7.403
Cites / Doc. (2 years)	1999	0.286
Cites / Doc. (2 years)	2000	0.341
Cites / Doc. (2 years)	2001	0.380
Cites / Doc. (2 years)	2002	0.552
Cites / Doc. (2 years)	2003	0.909
Cites / Doc. (2 years)	2004	1.105
Cites / Doc. (2 years)	2005	0.919
Cites / Doc. (2 years)	2006	1.024
Cites / Doc. (2 years)	2007	1.535
Cites / Doc. (2 years)	2008	1.726
Cites / Doc. (2 years)	2009	1.598
Cites / Doc. (2 years)	2010	1.950
Cites / Doc. (2 years)	2011	2.330
Cites / Doc. (2 years)	2012	2.120
Cites / Doc. (2 years)	2013	2.433
Cites / Doc. (2 years)	2014	2.283
Cites / Doc. (2 years)	2015	2.341
Cites / Doc. (2 years)	2016	2.763
Cites / Doc. (2 years)	2017	3.068
Cites / Doc. (2 years)	2018	3.871
Cites / Doc. (2 years)	2019	3.986
Cites / Doc. (2 years)	2020	5.023
Cites / Doc. (2 years)	2021	6.172
Cites / Doc. (2 years)	2022	7.907
Cites / Doc. (2 years)	2023	7.359

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	1
Self Cites	2000	8
Self Cites	2001	6
Self Cites	2002	16
Self Cites	2003	17
Self Cites	2004	12
Self Cites	2005	19
Self Cites	2006	26
Self Cites	2007	18
Self Cites	2008	20
Self Cites	2009	17
Self Cites	2010	23
Self Cites	2011	41
Self Cites	2012	64
Self Cites	2013	79
Self Cites	2014	88
Self Cites	2015	81
Self Cites	2016	127
Self Cites	2017	74
Self Cites	2018	113
Self Cites	2019	137
Self Cites	2020	194
Self Cites	2021	316
Self Cites	2022	474
Self Cites	2023	261
Total Cites	1999	20
Total Cites	2000	45
Total Cites	2001	26
Total Cites	2002	50
Total Cites	2003	98
Total Cites	2004	90
Total Cites	2005	102
Total Cites	2006	140
Total Cites	2007	216
Total Cites	2008	272
Total Cites	2009	253
Total Cites	2010	310
Total Cites	2011	371
Total Cites	2012	494
Total Cites	2013	727
Total Cites	2014	1018
Total Cites	2015	1077
Total Cites	2016	1200
Total Cites	2017	1332
Total Cites	2018	1490
Total Cites	2019	2021
Total Cites	2020	2588
Total Cites	2021	3573
Total Cites	2022	4840
Total Cites	2023	5256

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	0.264
External Cites per document	2000	0.536
External Cites per document	2001	0.270
External Cites per document	2002	0.436
External Cites per document	2003	0.953
External Cites per document	2004	0.918
External Cites per document	2005	0.933
External Cites per document	2006	0.991
External Cites per document	2007	1.489
External Cites per document	2008	1.703
External Cites per document	2009	1.748
External Cites per document	2010	2.260
External Cites per document	2011	2.463
External Cites per document	2012	2.172
External Cites per document	2013	2.391
External Cites per document	2014	2.620
External Cites per document	2015	2.541
External Cites per document	2016	2.716
External Cites per document	2017	3.099
External Cites per document	2018	3.712
External Cites per document	2019	4.311
External Cites per document	2020	4.886
External Cites per document	2021	5.704
External Cites per document	2022	6.908
External Cites per document	2023	7.035
Cites per document	1999	0.278
Cites per document	2000	0.652
Cites per document	2001	0.351
Cites per document	2002	0.641
Cites per document	2003	1.153
Cites per document	2004	1.059
Cites per document	2005	1.146
Cites per document	2006	1.217
Cites per document	2007	1.624
Cites per document	2008	1.838
Cites per document	2009	1.874
Cites per document	2010	2.441
Cites per document	2011	2.769
Cites per document	2012	2.495
Cites per document	2013	2.683
Cites per document	2014	2.868
Cites per document	2015	2.747
Cites per document	2016	3.038
Cites per document	2017	3.281
Cites per document	2018	4.016
Cites per document	2019	4.625
Cites per document	2020	5.282
Cites per document	2021	6.257
Cites per document	2022	7.658
Cites per document	2023	7.403

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	0.00
2000	6.67
2001	17.86
2002	33.33
2003	3.33
2004	18.75
2005	9.43
2006	10.42
2007	6.38
2008	10.00
2009	22.50
2010	16.67
2011	18.27
2012	15.93
2013	22.46
2014	26.24
2015	22.41
2016	34.90
2017	19.81
2018	27.47
2019	33.66
2020	35.83
2021	31.69
2022	33.21
2023	36.70

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	2
Non-citable documents	2001	3
Non-citable documents	2002	3
Non-citable documents	2003	3
Non-citable documents	2004	4
Non-citable documents	2005	5
Non-citable documents	2006	6
Non-citable documents	2007	7
Non-citable documents	2008	7
Non-citable documents	2009	6
Non-citable documents	2010	5
Non-citable documents	2011	5
Non-citable documents	2012	12
Non-citable documents	2013	11
Non-citable documents	2014	14
Non-citable documents	2015	6
Non-citable documents	2016	8
Non-citable documents	2017	6
Non-citable documents	2018	5
Non-citable documents	2019	6
Non-citable documents	2020	8
Non-citable documents	2021	11
Non-citable documents	2022	9
Non-citable documents	2023	12
Citable documents	1999	72
Citable documents	2000	67
Citable documents	2001	71
Citable documents	2002	75
Citable documents	2003	82
Citable documents	2004	81
Citable documents	2005	84
Citable documents	2006	109
Citable documents	2007	126
Citable documents	2008	141
Citable documents	2009	129
Citable documents	2010	122
Citable documents	2011	129
Citable documents	2012	186
Citable documents	2013	260
Citable documents	2014	341
Citable documents	2015	386
Citable documents	2016	387
Citable documents	2017	400
Citable documents	2018	366
Citable documents	2019	431
Citable documents	2020	482
Citable documents	2021	560
Citable documents	2022	623
Citable documents	2023	698

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	56
Uncited documents	2000	47
Uncited documents	2001	51
Uncited documents	2002	45
Uncited documents	2003	39
Uncited documents	2004	44
Uncited documents	2005	39
Uncited documents	2006	52
Uncited documents	2007	43
Uncited documents	2008	54
Uncited documents	2009	37
Uncited documents	2010	34
Uncited documents	2011	32
Uncited documents	2012	54
Uncited documents	2013	70
Uncited documents	2014	98
Uncited documents	2015	88
Uncited documents	2016	77
Uncited documents	2017	80
Uncited documents	2018	49
Uncited documents	2019	61
Uncited documents	2020	63
Uncited documents	2021	52
Uncited documents	2022	57
Uncited documents	2023	65
Cited documents	1999	16
Cited documents	2000	22
Cited documents	2001	23
Cited documents	2002	33
Cited documents	2003	46
Cited documents	2004	41
Cited documents	2005	50
Cited documents	2006	63
Cited documents	2007	90
Cited documents	2008	94
Cited documents	2009	98
Cited documents	2010	93
Cited documents	2011	102
Cited documents	2012	144
Cited documents	2013	201
Cited documents	2014	257
Cited documents	2015	304
Cited documents	2016	318
Cited documents	2017	326
Cited documents	2018	322
Cited documents	2019	376
Cited documents	2020	427
Cited documents	2021	519
Cited documents	2022	575
Cited documents	2023	645