Logistics, supply chain and physical internet; Urban mobility transitions; Sustainable Finance; Energy transitions; Transport Data Analytics; Travel behavior; Mobility behavior change support systems; Justice and politics of transitions; International diffusion of innovations
National Academy of Science and Technology. DOST-NAST International Publication Awards (2022).
National Academy of Science and Technology. DOST-NAST International Publication Awards (2023).
“Investigating the Critical Role of Japan’s Development Assistance Organizations in Accelerating State-Led Public Transit Transformation in the Philippines” (2021-2022). Amount: ¥850,000. Grant for Japan-related Research Projects. Sumitomo Foundation. http://www.sumitomo.or.jp/e/Jare/20jarelist.htm
Developing An Intersectional Equity Framework to Support Walkability Transitions (EP-2022-WK-03), funded by Volvo Research and Educational Foundations (VREF) for Year 2023. Amount: 500,000 SEK. Project Leader: Dr. Iderlina Mateo-Babiano. Members from Australia and ASEAN.
Pilot Testing the Institutionalization of Service Contracting Towards the Establishment of A Public Transit Authority in LGUs as a Viable Catalyst for Transport Sector Reform, funded by Center for Research and Communication Foundation, Inc. (CRCFI) for Year 2023-2024. Amount: Php 375,000.
https://crc.uap.asia/2023/07/19/crcfi-research-fund-selected-research-proposals-for-ay-2023-2024/
Informal and Shared Public Transport: How Can an Equity-Led Approach Inform a Sustainable and Just Transport Transition?, funded by Volvo Research and Educational Foundations (VREF) for Year 2023. Project Leader: Dr. Iderlina Mateo-Babiano.
Walkability Transitions from an Intersectional Equity and Justice Perspective. Asian Transport Studies.
https://www.sciencedirect.com/journal/asian-transport-studies/about/call-for-papers#call-for-papers-on-the-special-issue-walkability-transitions-from-an-intersectional-equity-and-justice-perspective
Sunio, V., Mirabueno, J., Perez, G., Argamosa, P., Ligot, E., Manzano, G. & Alviar, N. (2026). Towards a greater role for local government units as public transport service providers in the Philippines. To be published in Transportation Research Procedia (Scopus) (accepted).
Sunio, V., Mirabueno, J., Perez, G., Argamosa, P., Ligot, E., Manzano, G., and Alviar, N (2026). Evaluating the Models of Public Transport Service Provision by Local Government Units. To be published as a conference proceeding in Atlantis Highlights in Engineering (Springer Nature) (accepted).
Sunio, V., Yuson, Z., del Rosario, R., Tubo, J., Ubanan, L. and Lumawig, T.R. (2026). Unlocking Private Debt Financing: Evaluating the Creditworthiness of Transport Cooperatives. To be published as a conference proceeding in Atlantis Highlights in Engineering (Springer Nature) (accepted).
Gaspay, S.M., Salison, A.J., Sunio, V. and Stringer, T. (2025). Driving Change: Lessons on Electrification within the Modernization of Jeepneys in the Philippines. Research in Transportation Economics, 113, 101638. https://www.sciencedirect.com/science/article/pii/S0739885925001210 [pdf]
Hirata, E., Sunio, V., Thomson, R., and Foliente, G (2025). Toward greener logistics: uncovering key enablers of the physical internet using AI-powered theme analysis. Cleaner Logistics and Supply Chain, 117, 100263. https://www.sciencedirect.com/science/article/pii/S2772390925000629 [pdf]
Manansala, R. and Sunio, V. (2025). Improving the Gains Through Consolidation of Orders from Multiple Shippers at the Cross-Dock Facility in the Philippines. Proceedings of the 2025 International Physical Internet Conference. https://repository.gatech.edu/entities/publication/c8ae3c78-9ac9-445d-b8c0-1def62da625a
Sunio, V., Gaspay, S. M., Mateo-Babiano, I., & Fillone, A. (2025). Advancing transport financing through service contracting: an exploratory study in the Philippines. In Handbook on Transport in Asia (pp. 270-286). Edward Elgar Publishing. https://www.elgaronline.com/view/book/9781035309245/chapter14.xml [PDF version]
Sunio, V., Abante, K.I., and Golub, A. (2025). The politics of public budgeting and the struggle for a more equitable budget allocation for public transport modernization program in the Philippines. Journal Of Environmental Policy & Planning (Scopus) https://www.tandfonline.com/doi/full/10.1080/1523908X.2025.2515221 (PDF).
Sunio, V., and Bunda, N. (2025). Understanding the process of adoption of electric jeepneys by transport cooperatives using a stage model. Transportation Research Procedia, Volume 86, 2025, Pages 64-71. https://www.sciencedirect.com/science/article/pii/S235214652500256X [PDF version]
Sunio, V., Nery, J. R., Gaspay, S. M., & Stringer, T. (2025). Can Service Contracts Potentially Enhance the Creditworthiness of Transport Cooperatives? A Case Study from the Philippines. Transportation Research Record, 03611981251320386. https://doi.org/10.1177/03611981251320386 [PDF version]
Stringer, T., Gaspay, SM., Sunio, V., and Burelo, M. (2025). Charging Ahead: Prioritizing Renewable Energy for Electric Minibuses in the Philippines. Special issue: Towards Sustainability and Resilience in Transportation Systems. Sustainability Analytics and Modeling, 5, 100038. https://www.sciencedirect.com/science/article/pii/S2667259625000013?via%3Dihub [pdf]
Sunio, V., Li, W., Pontawe, J., Dizon, A., and Fillone, A. (2025). Transforming the public transport sector in the Philippines through service contracts: A program evaluation study. Transportation Research Procedia 82, 890–907. https://www.sciencedirect.com/science/article/pii/S2352146524004022 [PDF version]
Peckson, P., Sunio, V., and Mateo-Babiano, I. (2024). Exuberant Vitality or Objective Walkability? Reframing Walkability in Downtown Baguio, the Philippines. Journal of the Eastern Asia Society for Transportation Studies, 15, 140-159. https://www.jstage.jst.go.jp/article/easts/15/0/15_140/_article/-char/ja/
Sunio, V., Theng, A.J., Peckson, P. and Ugay, J.C. (2024). Emerging storylines in the context of the pandemic for the mainstreaming of bicycles in the transport system. Journal of Cycling and Micromobility Research, Volume 2, 100024. https://www.sciencedirect.com/science/article/pii/S2950105924000159 [Ungated PDF version]
Sunio, V., Mateo-Babiano, I., Rivera, J., Mariano, A.P. and Fillone, A. (2024). Long-term service contracts for the mobilization of private financing for the reform of informal public transport sector in the Philippines. Case Studies on Transport Policy, 101166. https://www.sciencedirect.com/science/article/abs/pii/S2213624X2400021X [Ungated PDF version]
Sunio, V., Fillone, A., Abad, R.P., Rivera, J. and Guillen, MD (2023). Why does demand-based transport planning persist? Insights from social practice theory. Journal of Transport Geography, Volume 111, 103666. https://www.sciencedirect.com/science/article/abs/pii/S0966692323001382 [Ungated PDF version]
Sunio, V., Mendejar, J., Nery, J, and Carlos, JP (2023). Generalization of digital innovation for financial inclusion by means of market creation through regulation and governance. Global Transitions, Volume 5, 29-39. https://www.sciencedirect.com/science/article/pii/S2589791823000051 [Ungated PDF version]
Bunda, N., Sunio, V., Palmero, S., Tabañag, I.D., Reyes, D.J. and Ligot, E (2023). Stage Model of the Process of Solar Photovoltaic Adoption by Residential Households in the Philippines. Cleaner and Responsible Consumption, 100114. https://www.sciencedirect.com/science/article/pii/S2666784323000153 [Ungated PDF version]
Sunio, V. Kato, H., Gaspay, S., Pontawe, J., and Napalang, S (2023). International transfer of railway infrastructure through the intermediation of aid agencies. Transportation Research Interdisciplinary Perspectives, 18, 100765. https://www.sciencedirect.com/science/article/pii/S259019822300012X [Ungated PDF version]
Sunio, V. Ugay, J., Li, CW., Liwanag, H and Santos, J. (2023). Impact of Public Transport Disruption on Access and Well-Being During Covid-19 Pandemic: A Qualitative Case Study in Metro Manila, Philippines. Case Studies on Transport Policy, Volume 11, 100948. https://doi.org/10.1016/j.cstp.2023.100948 https://www.sciencedirect.com/science/article/abs/pii/S2213624X23000020 [Ungated PDF version]
Sunio, V (2022). Guest editor of the Special Issue of Innovatus on "Digital Transformation of Transportation". https://innovatus-pub.github.io/abstractpublications_archive/abstractpublications_2022b.html
Sunio, V. and Mendejar, J (2022). Financing Low-Carbon Transport Transition in the Philippines: Mapping Financing Sources, Gaps and Directionality of Innovation. Transportation Research Interdisciplinary Perspectives, 14, 100590. https://www.sciencedirect.com/science/article/pii/S2590198222000525 [Ungated PDF version]
Sunio, V., Cortes, R. & Lactao, J. (2022). Rhetorical orientations for promoting sustainable travel behavior: A Perspective. Research in Transportation Economics, 91, 101026. https://www.sciencedirect.com/science/article/pii/S0739885920302249 [Ungated PDF version]
Also featured in 360info: "Bus lanes are efficient and bike lanes are fair – transport messages that work". Special report on "Nudging sustainability". DOI: https://doi.org/10.54377/4598-1f8b
Sunio, V., Li, W. J., Pontawe, J., Dizon, A., Valderrama, J. B., & Robang, A. (2022). Service Contracting as a policy response for public transport recovery during the Covid-19 Pandemic: A Preliminary Evaluation. Transportation Research Interdisciplinary Perspectives, 13, 100559. https://www.sciencedirect.com/science/article/pii/S2590198222000227 [Ungated PDF version]
Sunio, V. and Mateo-Babiano, I. (2022). Pandemics as ‘Windows of Opportunity’: Transitioning towards more Sustainable and Resilient Transport Systems. Transport Policy, 116, 175-187. https://www.sciencedirect.com/science/article/abs/pii/S0967070X21003577 [Ungated PDF version]
Sunio, V., Mendejar, J. and Nery, J (2021). Does the Greening of Banks Impact the Logics of Sustainable Financing? The Case of Bank Lending to Merchant Renewable Energy Projects in the Philippines. Global Transitions, Volume 3, 109-118. https://www.sciencedirect.com/science/article/pii/S2589791821000177 [Ungated PDF version]
Sunio, V. (2021). Unpacking justice issues in transport system transition using multi-criteria mapping method. Transportation Research Part D: Transport and Environment. Volume 96C, 102887. https://www.sciencedirect.com/science/article/abs/pii/S1361920921001887 [Ungated PDF version]
Sunio, V., Cortes, R. & Lactao, J. (2021). Evaluating and explaining the persuasiveness of rhetorical appeals for changing travel behaviour. Proceedings of the Eastern Asia Society for Transportation Studies (Volume 13). http://www.easts.info/on-line/proceedings/vol.13/pdf/PP2737_R1_F.pdf [Ungated PDF version]
Sunio, V., Peckson, P., & Ugay, J. C. (2021). How urban social movements are leveraging social media to promote dignified mobility as a basic human right. Case Studies on Transport Policy, 9(1), 68-79. https://www.sciencedirect.com/science/article/pii/S2213624X20300675 [Ungated PDF version]
Sunio, V., Argamosa, P., Caswang, J., & Vinoya, C. (2021). The State in the governance of sustainable mobility transitions in the informal transport sector. Research in Transportation Business & Management, 38, 100522. https://www.sciencedirect.com/science/article/pii/S2210539520300353 [Ungated PDF version]
Sunio, V., Laperal, M., & Mateo-Babiano, I. (2020). Social enterprise as catalyst of transformation in the micro-mobility sector. Transportation Research Part A: Policy and Practice, 138, 145-157. https://www.sciencedirect.com/science/article/abs/pii/S0965856420306091 [Ungated PDF version]
Sunio, V., Gaspay, S., Guillen, M. D., Mariano, P., & Mora, R. (2019). Analysis of the public transport modernization via system reconfiguration: The ongoing case in the Philippines. Transportation Research Part A: Policy and Practice, 130, 1-19. https://www.sciencedirect.com/science/article/abs/pii/S0965856418315416 [Ungated PDF version]
Sunio, V. and Schmöcker, J.D. (2019). Implementing Stage-Based Models of Behavioral Change as Menu-Based Intervention. Journal of the Eastern Asia Society for Transportation Studies, 13, 427-441. https://www.jstage.jst.go.jp/article/easts/13/0/13_427/_article/-char/ja/ [Ungated PDF version]
Brotoisworo, P. and Sunio, V. (2019). Exploring the Utilization of Crash Data from Waze and Twitter for Official National Crash Database. Proceedings of the Eastern Asia Society for Transportation Studies (Volume 12). http://www.easts.info/on-line/proceedings/vol.12/pdf/PP2504.pdf [Ungated PDF version]
Sunio, V., Schmöcker, J. D., & Kim, J. (2018). Understanding the stages and pathways of travel behavior change induced by technology-based intervention among university students. Transportation Research Part F: Traffic Psychology and Behaviour, 59, 98-114. https://www.sciencedirect.com/science/article/abs/pii/S1369847817306423 [Ungated PDF version]
Sunio, V., & Schmöcker, J. D. (2017). Can we promote sustainable travel behavior through mobile apps? Evaluation and review of evidence. International Journal of Sustainable Transportation, 11(8), 553-566. https://www.tandfonline.com/doi/abs/10.1080/15568318.2017.1300716 [Ungated PDF version]
Sunio, V., Schmöcker, J. D., Estuar, M.R.E, Dela Cruz, B.L., & Torres, M.J. (2017). Development And Usability Evaluation Of Blaze Information System For Promoting Sustainable Travel Behaviour In Metro Manila. Journal of the Eastern Asia Society for Transportation Studies, 12, 2428-2443. https://www.jstage.jst.go.jp/article/easts/12/0/12_2428/_article/-char/ja/ [Ungated PDF version]
Sunio, V., Schmöcker, J. D., & Estuar, M. R. J. (2017, October). Implementation of a mobility behavior change support system in Manila Philippines. In Intelligent Transportation Systems (ITSC), 2017 IEEE 20th International Conference on (pp. 661-666). IEEE. https://ieeexplore.ieee.org/abstract/document/8317912/ [Ungated PDF version]
Udani, Z. A. S., Sunio, V. C., Dado, R. H., & Udani, D. S. (2012). International briefing 26: training and development in the Philippines. International Journal of Training and Development, 16(4), 300-318. https://onlinelibrary.wiley.com/doi/10.1111/j.1468-2419.2012.00401.x [Ungated PDF version]
Governing Public Transport at the Local Level: Evaluating Models of LGU Involvement in the Philippines (under review; first round of revisions)
Development aid organizations as resource intermediaries and absorptive capacity enhancers: Policy implications for accelerating State-led transport transition (under review; first round of revisions)
Modeling the Adoption Process of Electric Jeepneys: A Path Analysis of Transport Cooperatives in the Philippines (under review; first round of revisions)
Not Without My AI: User Acceptance of a Deeply Personalized AI Super Assistant (AISA) (under review; first round of revisions)
Local Government Involvement in Public Transport: Evidence from the Philippines (under review)
Evaluating Local Government Participation in Public Transport Governance (under review)
Explaining the Viability of Local Government Involvement in Public Transport Service Provision through Principal Component and Ordinal Logistic Regression Analyses (under review)
Mobilizing justice in budget allocation to drive sustainable mobility transition: A case of an activist coalition in the Philippines (under review)
Inequity in Transport Systems in Metro Manila: Analysis of Car and Public Transit Access to Essential Opportunities (under review)
Environmental and economic impacts of electrifying semi-formal transit fleets: Findings from a midsize Mexican city (under review)
Designing a Hybrid Optimization Framework for Order Consolidation at the Cross-Dock Facility in the Philippines (under review)
Land Value Uplift due to Mass Transit Development: Insights from the Philippines’ LRT-1 (under review)
Intersectionality in transport, mobility and health equity research: A systematic review and research agenda setting (in preparation)
Sunio, V., Mirabueno, J., Perez, G., Argamosa, P., Ligot, E., Manzano, G. & Alviar, N. (2026). Towards a greater role for local government units as public transport service providers in the Philippines. To be presented at Euro Working Group on Transportation EWGT 2025 Conference, Edinburgh Napier University, Edinburgh, U.K., 1-3 September 2025. [paper] [presentation]
Sunio, V., Mirabueno, J., Perez, G., Argamosa, P., Ligot, E., Manzano, G., and Alviar, N (2025). Evaluating the Models of Public Transport Service Provision by Local Government Units. Presented at 14th Asia-Pacific Conference on Transportation and the Environment in Hangzhou, China. 9-11 August 2025. (accepted for presentation and conference proceedings) [presentation] [combined deck] [session chair certificate].
Sunio, V., Yuson, Z., del Rosario, R., Tubo, J., Ubanan, L. and Lumawig, T.R. (2025). Unlocking Private Debt Financing: Evaluating the Creditworthiness of Transport Cooperatives. Presented at 14th Asia-Pacific Conference on Transportation and the Environment in Hangzhou, China. 9-11 August 2025 (accepted for presentation and conference proceedings) [presentation] [combined deck].
Mirabueno, J., Sunio, V., Perez, G., Argamosa, P., Ligot, E., Manzano, G., and Alviar, N (2025). Identifying and Evaluating the Models for Institutionalizing the Service Contracting of Public Transport Services in the Philippines. To be presented at the 16th International Conference of Eastern Asia Society for Transportation Studies in Surakarta, Indonesia. 1-4 September 2025 [paper] (accepted for presentation)
Manansala, R. and Sunio, V. (2025). Maximizing Logistics Gains via Multi-Shipper Order Consolidation in Philippine Cross-Dock Operations. Presented at the 2025 Annual PAASE Meeting & Symposium (APAMS 2025) (over Zoom). University of South Carolina, USA. 15-16 July 2025. [presentation] [certificate]
Manansala, R. and Sunio, V. (2025). Improving the Gains Through Consolidation of Orders from Multiple Shippers at the Cross-Dock Facility in the Philippines. Presented at the IPIC 2025 - 11th International Physical Internet Conference. Hong Kong, China. 18-20 June 2025. [accepted for presentation and conference proceedings] [presentation pdf] [link to conference proceedings]
Sunio, V., Nery, JR., Gaspay, S. and Stringer, T. (2025). Can Service Contracts Potentially Enhance the Creditworthiness of Transport Cooperatives? A Case Study from the Philippines. Presented at the Transportation Research Board Annual Meeting. Washington DC. 5-9 January 2025. [Presentation deck]
Gaspay, S., Salison, AJ., Sunio, V., and Stringer, T (2024). Driving Change: Lessons on the Electrification and Modernization of Jeepneys in the Philippines. Presented at Thredbo 18 International Conference Series on Competition and Ownership in Land Passenger Transport, Cape Town, South Africa, 29 September – 3 October 2024. [Presentation deck] [paper] Runner Up. The Kelsian Award on the Best Sustainability-themed Paper. [Certificate].
Sunio, V., and Bunda, N. (2024). Understanding the process of adoption of electric jeepneys by transport cooperatives using a stage model. Euro Working Group on Transportation EWGT 2024 Conference, Lund University, Sweden, 4-6 September 2024. https://www.ewgt2024.se/conference-program/ [PDF copy of the presentation].
Also: Session Chairperson, Session on Environmental Impacts and Emissions in Transport Systems, EWGT Conference, Lund University, Sweden, 4-6 September 2024.
Sunio, V., Mateo-Babiano, I., Rivera, J., Mariano, A.P. and Fillone, A. (2023). Long-term service contracts for the mobilization of private financing for public transport sector reform in the Philippines. Presented at World Conference on Transport Research, Montreal, Canada, 17-21 July 2023. http://wctr2023.ca/pdfs/BOOKLET_WCTR2023.pdf [PDF copy of the paper]
Recipient of 16th WCTR Bursary Awards. http://wctr2023.ca/pdfs/Bursary-awards_WCTR2023.pdf
Sunio, V., Li, W., Pontawe, J., Dizon, A., and Fillone, A. (2023). Transforming the public transport sector in the Philippines through service contracts: A program evaluation study. Presented at World Conference on Transport Research, Montreal, Canada, 17-21 July 2023. http://wctr2023.ca/pdfs/BOOKLET_WCTR2023.pdf [PDF copy of the paper]
Abante, K., Sunio, V., and Paranga, N.A. (2023). Assessing Transport Budget Allocation and Investments Pipeline from 2010-2025 in the Philippines from a Justice Perspective. Presented at World Conference on Transport Research, Montreal, Canada, 17-21 July 2023. http://wctr2023.ca/pdfs/BOOKLET_WCTR2023.pdf [PDF copy of the paper]
Sunio, V., Li, W., Pontawe, J., Dizon, A., and Fillone, A. (2022). Service contracting of paratransit as a pathway for public transport reform and a policy response during the pandemic. Presented at Thredbo 17 International Conference Series on Competition and Ownership in Land Passenger Transport, Sydney, Australia, 4-8 September 2022. Recipient of Neil Smith Scholarship and National Research Council of the Philippines' Research Dissemination in Local and International Platforms (RDLIP) financial grant. [PDF copy here]
*See workshop report here, which cites the above presentation:
Finn, B., & Yen, B. T. (2024). Workshop 2B report: Governance of relationships between authorities and operators with particular reference to situations of fundamental change. Research in Transportation Economics, 103, 101395. https://www.sciencedirect.com/science/article/pii/S073988592300135X
Sunio, V., Schmöcker, J.-D., Kim, J. and Estuar, R. (2017). Understanding the stages and pathways of travel behaviour change induced by technology based intervention among university students. Presented at the 56th Japan Infrastructure Planning Conference (Autumn Meeting), Iwate, Japan. November 3-5. [PDF copy here] https://jsce-ip.org/wp-content/uploads/2019/03/ip56_ver20171007.pdf
Sunio, V., Schmöcker, JD., Estuar, R., Gotangco, C.K. and Favis, A.M. (2017). Development and Evaluation of Blaze Information System. Presented at International Conference on Environmental Psychology, A Coruna, Spain. 30 August - 1 September 2017. (Presentation only [click here]; no manuscript)
Sunio, V., Schmöcker, JD., Estuar, R., Torres, M, and Robosa, K (2016). Development of BLAZE: A mobility behavior change support system for promoting environmentally friendly travel behavior in Manila. Presented at World Conference on Transport Research - WCTR 2016 Shanghai. 10-15 July 2016. [PDF copy here]
Ang, S., de Borja, R., Lim, P.N., Matriano, K., Ramos, G.Y., and Sunio, V. (2024). An Investigation on the Effect of Supply Chain Integration on Firm Performance in the Philippine Apparel Industry. 2024 Physical Internet National Symposium. De La Salle University, City of Manila, Metro Manila. 28-29 November 2024. http://natpisym.dlsu.edu.ph/ [presentation]
Ang, S., de Borja, R., Lim, P.N., Matriano, K., Ramos, G.Y., and Sunio, V. (2024). Exploring the Impact of Supply Chain Integration on Firm Performance in the Philippine Apparel Industry: The Role of Competition Capability and SCM Practices. 2024 National Conference: 15th National Conference Operations Research and Analytics: Empowering Decision-Making Across Industries and Sectors. Eastwood Richmonde Hotel, Quezon City, Metro Manila. 8 November 2024. [Programme] [pdf of presentation].
Sunio, V. and Nery, J.R. (2024). Mobilizing private financing for the reform of informal public transport in the Philippines through service contracting. Presented at the 2024 Fiscal Policy Conference: Efficient Governance Towards a Stronger Fiscal Future. Organized by the Philippines' Department of Budget and Management. University of Asia and the Pacific, Pasig City, Metro Manila, Philippines. 22 November 2024. [Book of Abstracts] [pdf of presentation].
Sunio, V. et al (2023). Towards a Roadmap to Realize the Physical Internet Vision in the Philippines: Preliminary Results from Stakeholders’ Consultation. Proceedings of the 29th Annual Conference of the Transportation Science Society of the Philippines. https://ncts.upd.edu.ph/tssp/wp-content/uploads/2024/01/TSSP2023-07-Sunio.pdf
Sunio, V., Santos, E., Baleta, F., and Tabanag, I. (2022). Research and Development Agenda for the Philippine Maritime Sector: Results from Stakeholder Consultations. Proceedings of the 28th Annual Conference of the Transportation Science Society of the Philippines. https://ncts.upd.edu.ph/tssp/wp-content/uploads/2023/01/TSSP2022_02.pdf
Challenges on the road to full modernisation of jeepney fleet. South China Morning Post. 12 June 2024. https://drive.google.com/file/d/13hhaQyW0X8uh4O8jH7mo7e6HU6gZLm8k/view?usp=drive_link
[OPINION] Ways local governments can play a bigger role in public transportation. Rappler. 14 January 2025. https://www.rappler.com/voices/ways-local-governments-can-play-bigger-role-public-transportation/
[COMMENTARY] The missing piece in public transport reform. Inquirer. 1 August 2025. https://opinion.inquirer.net/185073/the-missing-piece-in-public-transport-reform
MDPI Journals: Sustainability (2023-02-25; 2022-10-09; 2022-09-11; 2022-06-18; 2022-05-21), Future Transportation (2022-09-20; 2022-07-17), Sensors (2023-03-12; 2022-12-11; 2022-08-24), Applied Sciences (2022-10-06), Journal of Marine Science and Engineering (2023-04-26)
Taylor and Francis: Cities & Health (19 September 2025); Applied Mobilities (29 June 2025); Journal of Asian Public Policy (22 June 2025; 17 September 2025); Journal of Urban Affairs (21 September 2024; 9 March 2025); Journal of Environmental Policy & Planning (25 July 2024; 30 October 2024); Cogent Social Sciences (24 March 2023; 9 September 2024), International Journal of Sustainable Transportation (17 July 2020; 17 August 2024), Transport Reviews (August 2015–August 2016; https://www.tandfonline.com/doi/full/10.1080/01441647.2016.1227407)
Sage Publishing: Transportation Research Record (10 November 2022)
Wiley: International Journal of Finance and Economics (24 March 2025)
Emerald: Transforming Government: People, Process and Policy (30 July 2025; 19 September 2025)
Bentham Open: Open Transportation Journal (29 April 2023)
Springer: Discover Sustainability (31 August 2025)
Conference: WSTLUR 2024 International Conference (26 February 2024), World Conference on Transport Research Society 2023 (31 January 2023), EASTS (2015, 2016, 2017, 2019, 2025), TSSP, Samahang Pisika ng Pilipinas Conference (1 May 2025), International Physical Internet Conference (2025)
Elsevier: Research in Transportation Business & Management (5th August 2021; 7th December 2021; 13 November 2023; 30 March 2024), Transport Policy (27th June 2022; 5th April 2023; 16 June 2023; 22 July 2023), Energy Strategy Reviews (15th August 2022), Case Studies on Transport Policy (24 March 2023; 9th October 2022; 14th November 2022; 9th January 2023; 31 May 2023; 13 June 2023), Research in Transportation Economics (22nd December 2022; April 1, 2025), Asian Transport Studies (25 August 2023; 26 August 2023; 17 December 2023; 14 January 2024), Journal of Urban Mobility (1 October 2023; 13 January 2024), Journal of Climate Finance (19 April 2025; 3 August 2025), Social Sciences & Humanities Open (22 June 2025); Technological Forecasting and Social Change (30 June 2025)
Elsevier: Journal of Transport Geography (11th February 2020; 17th September 2020; 26 July 2023), Sustainable Cities and Society (22nd May 2021; 7th August 2021), Urban Governance (15th July 2021; 25 May 2023; 21 October 2023), Utilities Policy (15th July 2021; 6th December 2021; 29th December 2021), Transportation Research Part D (7th August 2021; 15th October 2021; 26th July 2022; 8 January 2024; 27 April 2024), Transportation Research Interdisciplinary Perspectives (7th May 2022; 22nd July 2022; 24th July 2022; 13th October 2022; 6th February 2023; 3 July 2023; 8 July 2023; 17 October 2023; 13 January 2024; 14 August 2024; 29 September 2024; 11 October 2024); Technology in Society (21 September 2024; 9 January 2025)
Others: Environmental Engineering and Management Journal (24th December 2020), Southeastern Philippines Journal of Research and Development (23 August 2024), Philippine Journal of Science (14th April 2025)
"The Adoption Process of Electric Jeepneys: A Path Analysis of Transport Cooperatives in the Philippines". Webinar on Beyond the EV Fix: Rethinking Low-Carbon Transitions in Popular Transport. Transport Studies Unit. University of Oxford. 26 June 2025. https://www.tsu.ox.ac.uk/event/beyond-ev-fix-rethinking-low-carbon-transitions-popular-transport [presentation].
"Physical Internet: Re-imagining Logistics". Unilever Philippines - BGC. Transport Summit. 14 January 2025. [presentation]
"Financing the reform of informal public transport in the Philippines". Portland State University. 28 May 2024. https://www.pdx.edu/urban-studies/events/financing-reform-informal-public-transport-philippines-visiting-scholar-seminar-dr-varsolo
"Financing as Governance: The case of financing the reform of informal public transport in the Philippines", Lingnan University, HK. 14 December 2023. Online. https://www.ln.edu.hk/sgs/news/Cities-and-Governance-Seminar-Series-2023-24-Financing-as-Governance-The-case-of-financing-the-reform-of-informal-public-transport-in-the-Philippines
"Transportation Equity and Justice: Issues and Agenda". Kyonggi University, South Korea. 13 October 2023. https://humo.kyonggi.ac.kr/labnews/%EA%B5%AD%EC%A0%9C%EC%97%B0%EC%82%AC-%EC%B4%88%EC%B2%AD%EC%84%B8%EB%AF%B8%EB%82%98-varsolo-c.-sunio-%EB%B0%95%EC%82%AC%EB%8B%98-%EC%84%B8%EB%AF%B8%EB%82%98
"Financing the reform of informal public transport in the Philippines". International Public Transport Forum. 10 October 2023. Busan, South Korea. https://www.youtube.com/watch?v=tMrc6iB6Rq4 and https://kst.or.kr/bbs/board.php?bo_table=admin_cal&wr_id=1981
"Towards A Prosperous Archipelagic Maritime Nation: S&T Perspective". Blue Economy Annual Trade and Conference 2023, SMX Convention Center, 7 September 2023. https://www.thebeaconexpo.com/?pgid=lwa7ro5e-e28f3975-fb5b-4917-a8a3-93ecd85fd0bb
"Transportation Equity and Justice". Transportation Summit 2023. Mapua University. August 23, 2023.
Analyzing transport transition issues from the perspective of justice using multi-criteria mapping method. The 6th UTokyoIP-CUTI Special Seminar. February 2, 2023. https://jsce-ip.org/2023/01/26/218-the-4th-utokyoip-cuti-special-seminar-2-2/
Various Aspects of Sustainable Transitions in Transport and Mobility in a Global South Country. Invited Speaker. Transportation, Mobility and Energy, Basic Research in Engineering for Sustainable Communities. National Research Council of the Philippines. October 11, 2021. NRCP Facebook Page. https://nrcp.dost.gov.ph/latest-news/810-nrcp-highlights-transportation-engineering-energy-for-sustainable-communities
Various Aspects of Sustainable Transitions in Transport and Energy in a Global South Country. Invited speaker for Socio-economy in Sustainable Development Goals 1. 1st International Conference of Lignocellulose (ICON-LIG) in conjunction with the 10th International Symposium for Sustainable Humanosphere (ISSH). September 14, 2021. http://situs.opi.lipi.go.id/iconlig-issh2021/
Covid19 as Window of Opportunity or Setback for Transition in Transport in Metro Manila?. Sustainability transitions in the context of Covid-19: Perspectives from the Global South. Sustainability Transitions Research Network. October 7, 2020. https://transitionsnetwork.org/webinar-series-sustainability-transitions-in-the-context-of-covid-19-perspectives-from-the-global-south/
https://www.tipconsortium.net/event/sustainability-transitions-in-the-context-of-covid-19-perspectives-from-the-global-south-local-experimentations-in-times-of-a-pandemic/
Data analytics for transport policy and planning in the Philippines. ASEAN-Japan Seminar on “Utilization of Mobile Phone Big-Data (MBD) for Transport Planning”. January 16, 2019. Hanoi, Vietnam. https://www.jttri.or.jp/english/events/2019/seminar190116.html
Physical Internet for Logistics Initiative: https://sites.google.com/uap.asia/physicalinternetph/
Webinar Series on Emerging and State-of-the-Art Transportation Science Studies: https://sites.google.com/uap.asia/transportsciph/
Conference on the Service Contracting of Public Transportation in the Philippines: https://sites.google.com/uap.asia/servicecontractph/