This map shows the geographic impact of G Tweddle's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by G Tweddle with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites G Tweddle more than expected).
This network shows the impact of papers produced by G Tweddle. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by G Tweddle. The network helps show where G Tweddle may publish in the future.
Co-authorship network of co-authors of G Tweddle
This figure shows the co-authorship network connecting the top 25 collaborators of G Tweddle.
A scholar is included among the top collaborators of G Tweddle based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with G Tweddle. G Tweddle is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
All Works
19 of 19 papers shown
1.
Watkiss, Paul, et al.. (2005). The Validity of Food Miles as an Indicator of Sustainable Development: Final Report for DEFRA.48 indexed citations
2.
Watkiss, Paul, et al.. (2005). The validity of food miles as an indicator of sustainable development - final report.130 indexed citations
Wardman, Mark, A Bristow, Jeremy Toner, & G Tweddle. (2002). Review of Research Relevant to Rail Competition for Short Haul Air Routes.10 indexed citations
6.
Fowkes, A.S., P E Firmin, Anthony Whiteing, & G Tweddle. (2001). FREIGHT ROAD USER VALUATIONS OF THREE DIFFERENT ASPECTS OF DELAY.8 indexed citations
7.
Fowkes, A.S. & G Tweddle. (1997). VALIDATION OF STATED PREFERENCE FORECASTING: A CASE STUDY INVOLVING ANGLO-CONTINENTAL FREIGHT.9 indexed citations
8.
Tweddle, G, A.S. Fowkes, & Christopher Nash. (1995). Impact of the Channel Tunnel: A Survey of Anglo-European Unitised Freight. Results of the Phase I Interviews.. White Rose Research Online (University of Leeds, The University of Sheffield, University of York).7 indexed citations
9.
Mackie, Peter & G Tweddle. (1993). MEASURING THE BENEFITS GAINED BY INDUSTRY FROM ROAD NETWORK IMPROVEMENTS.. White Rose Research Online (University of Leeds, The University of Sheffield, University of York).2 indexed citations
10.
Fowkes, A.S., Christopher Nash, Jeremy Toner, & G Tweddle. (1993). Disaggregated Approaches to Freight Analysis: A Feasibility Study.. White Rose Research Online (University of Leeds, The University of Sheffield, University of York).4 indexed citations
11.
Mackie, Peter & G Tweddle. (1992). MEASURING THE BENEFITS GAINED BY INDUSTRY FROM ROAD NETWORK IMPROVEMENTS - TWO CASE STUDIES.1 indexed citations
Fowkes, A.S., Chris Nash, & G Tweddle. (1990). The track and external costs of road transport. White Rose Research Online (University of Leeds, The University of Sheffield, University of York).1 indexed citations
15.
Fowkes, A.S., Christopher Nash, & G Tweddle. (1989). Valuing the attributes of freight transport quality: results of the stated preference survey. OpenGrey (Institut de l'Information Scientifique et Technique).13 indexed citations
16.
Fowkes, A.S., Christopher Nash, & G Tweddle. (1989). In what circumstances are inter-modal systems competitive?.2 indexed citations
17.
Fowkes, A.S., Christopher Nash, & G Tweddle. (1989). New inter-modal freight technology and cost comparisons. White Rose Research Online (University of Leeds, The University of Sheffield, University of York).3 indexed citations
18.
Fowkes, A.S. & G Tweddle. (1988). A COMPUTER GUIDED STATED PREFERENCE EXPERIMENT FOR FREIGHT MODE CHOICE.8 indexed citations
19.
Fowkes, A.S., Christopher Nash, & G Tweddle. (1988). Taxation of Road Goods Vehicles – An Economic Assessment. White Rose Research Online (University of Leeds, The University of Sheffield, University of York).1 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.