Optimal Transportation Networks: A Case Study of Highway Systems

1970 ◽  
Vol 2 (3) ◽  
pp. 267-284 ◽  
Author(s):  
R. D. MacKinnon ◽  
M. J. Hodgson

This paper outlines some combinatorial approaches to the optimal synthesis of transportation networks. As an example, the inter-urban multi-lane highway network of Southern Ontario and Quebec is studied. A number of network-building algorithms are applied to this situation, and the resulting networks compared to the actual network. Some suggestions for further research are noted.

2021 ◽  
Vol 46 (2) ◽  
pp. 57-63
Author(s):  
Lotte Wilms ◽  
Caleb Derven ◽  
Merisa Martinez

How can European library staff working in digital humanities connect with peers in the library sector, determine where to find relevant information about digital scholarship, provide their collections as data and to be an equal partner in digital humanities research? The LIBER Digital Humanities Working Group was created as a participatory knowledge network in 2017 to address these questions. Through a series of workshops, knowledge sharing activities, and a Europe-wide survey and resulting report, the Working Group engaged with the international LIBER DH community. Useful reflections are provided on organising an open, voluntary DH community and planning for inclusive activities that benefit digital scholarship in European research libraries.


2015 ◽  
Vol 49 ◽  
pp. 332-340 ◽  
Author(s):  
Ismail Ercument Ayazli ◽  
Fatmagul Kilic ◽  
Steffen Lauf ◽  
Hulya Demir ◽  
Birgit Kleinschmit

2018 ◽  
Vol 167 ◽  
pp. 176-185 ◽  
Author(s):  
Virginia Capmourteres ◽  
Justin Adams ◽  
Aaron Berg ◽  
Evan Fraser ◽  
Clarence Swanton ◽  
...  

2019 ◽  
Vol 26 ◽  
pp. 101015 ◽  
Author(s):  
Giuseppe Napoli ◽  
Antonio Polimeni ◽  
Salvatore Micari ◽  
Giorgio Dispenza ◽  
Vincenzo Antonucci

Author(s):  
Angela Pollak

This case study examines information behaviours of a master electrician in Southern Ontario. Complex information structures consistent with Chatman’s theories of Life in the Round (1999) and Information Poverty (1996), as well as Social Dilemma/Collective Action (Smith 2005) theories emerged that challenge the way we think about information in this blue collar work environment.Cette étude de cas examine les comportements informationnels d'un maître-électricien du Sud de l'Ontario. Conformément aux théories de Chatman exposées dans Life in the Round (1999) et dans Information Poverty (1996) et celles de Smith exposées dans Social Dilemma/Collective Action (2005), des structures d'information complexes émergent et viennent redéfinir les idées préconçues que nous avons de l'information dans le milieu de travail des cols bleus. 


Author(s):  
Cameron Grile ◽  
Katharine M. Hunter-Zaworski ◽  
Christopher M. Monsere

As part of the project planning process, highway agencies must allocate limited funding to a substantial list of projects that exceeds available resources. For preservation projects, a key component of this decision is to determine which projects receive safety improvements and which are “pave only.” Traditionally, this decision has been made project by project, with the possible result of a selection that does not maximize safety benefits. This paper takes a case study approach and applies a new tool developed in NCHRP Report 486, the Resurfacing Safety Resource Allocation Program (RSRAP), to a subset of the Oregon Department of Transportation's (DOT's) highway network. The RSRAP tool maximizes safety improvements for a given set of projects and budget. Thirty-three projects scheduled to receive a new road surface were selected and analyzed with RSRAP. These projects were subdivided into smaller sites to meet the assumptions of RSRAP. Road geometry, traffic volumes, and crash history for each site were collected and input into the program. The type and cost of the safety improvements output by RSRAP were compared with those selected by Oregon DOT. This research determined that RSRAP, which selected more projects for safety improvements than did Oregon DOT, is a tool that could be used by the department to select various safety improvements on pavement preservation projects. It was also determined that the budget used by Oregon DOT was large enough that all cost-effective improvements could be made.


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