University of Twente Student Theses


Implementation potential of Light Reflective Asphalt in Oldenzaal : a sustainable supply chain and urban perspective

Demir, A. (2020) Implementation potential of Light Reflective Asphalt in Oldenzaal : a sustainable supply chain and urban perspective.

[img] PDF
Abstract:The urban heat island (UHI) effect has many negative effects on society, economy and environment and has been a recent topic in research studies. Several mitigation techniques have been proposed throughout the recent years. One of these UHI mitigating techniques is the use of light reflective asphalt (LRA). Despite the UHI mitigating capacity and other benefits it may have, LRA also has disadvantages. The aim of this study is to take into account both the pros and cons of the LRA innovation and analyse what the implementation potential for LRA is in the context of Oldenzaal. This implementation potential is divided into two parts. The first part being the feasibility of LRA implementation from a sustainable supply chain management (SSCM) perspective. Meaning, whether or not the LRA innovation is feasible for the contractor, i.e. TWW. The second part of implementation potential is whether or not the LRA innovation fits into the urban context of Oldenzaal. Both these implementation potential perspectives are researched by answering the following research question: To what extent does the infrastructural innovation, i.e. LRA, show implementation potential in the context of Oldenzaal? The four aggregate alternatives, i.e. Bestone (BS), Labradoriet (LD), Luxovit (LV) and Reflexing White (RW), were compared using a multi-criteria analysis (MCA). Literature, experts and surveys were used to form the base of the MCA. The results suggest that LRA will be more difficult to implement than the the conventional aggregate, i.e. BS, as the latter is the more dominant alternative. When comparing the three LRA alternatives, LD and RW both seem to be the best LRA alternatives within the supply chain of ReintenInfra. LD seems to be the most viable LRA option economic-wise, while LV is the whitest and most diffusive aggregate, which can help in reducing the UHI effect and energy costs the most. RW is the most all-round LRA option. LD and LV both have low re-usability and applicability potential in top layers. Taking into account these pros and cons, future research on finding the optimal LRA mixture should be conducted. Using literature and expert interviews, the different urban factors influencing LRA potential have been identified and analysed for Oldenzaal. Results show a correlation between the location of roads and high UHI intensities zones. Furthermore, road illumination energy-savings of 560 GJ (equivalent to 53 households per year), can be achieved if LRA is to be applied for all asphalt roads. The urban canyon geometry of Oldenzaal, does not play a significant role, as only 17 out 222 asphalt roads are prohibited from LRA implementation by this factor. From a health perspective, the vulnerable groups to the additional thermal stress of the LRA innovation prevent 15 out of 222 asphalt roads from LRA implementation. Although identified, analysis regarding the construction year and traffic intensity could not be performed due to incomplete or missing data. The model contains a final and relative score for the implementation potential per road, indicating which road is, relatively-speaking, the most LRA-suitable. The top five asphalt roads for LRA implementation have been given from high to low potential, i.e. Prossinkhof, Bisschop Balderikstraat, Stationsplein, Titus Brandsmastraat and Bleekstraat. Only the input of the model has been partly validated, as the outcome, i.e. the final scores, do not contain an external and observed set of data with which it can be compared. Hence, future research should focus on validating the model by performing parameter observations before and after LRA implementation.
Item Type:Essay (Bachelor)
Faculty:ET: Engineering Technology
Programme:Civil Engineering BSc (56952)
Link to this item:
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page