| CLUSTER | RESEARCH SUB-AREAS | MAIN RESEARCH ISSUES |
|---|
| 1. | SOCIO-ECONOMIC ASPECTS | • the quality of social interaction (Neuroni et al., 2019; Tenney et al., 2019; Timmerman et al., 2019; Adnan et al., 2018; Vhaduri et al., 2018; Oliveira & Santos, 2018); |
| • the engagement of citizens in public life and decision-making; the participation of local stakeholders in managing public affairs; the collaboration between the local government and residents (Novo Vázquez & Vicente, 2019; Certomà & Rizzi, 2017; Streitz, 2017; Morgado et al., 2015; Ma & Lam, 2019; Horgan & Dimitrijević, 2019; Trencher, 2019; Manchester & Cope, 2019; Kundu, 2019; Mannan & Callenes-Sloan, 2019); |
| • healthcare (Sitón-Candanedo et al., 2019; Kumar et al., 2019; Kamel Boulos et al., 2019; Sedighian 2019; Chondrogiannis et al., 2019; Julian & Botti, 2019); |
| • security issues (Mattos et al., 2019; Krämer et al., 2019; Sittón-Candanedo et al., 2019; Sharma & Kalra, 2019; Xie & Hwang, 2019; Vitunskaite et al., 2019); |
| • education (Sodiq et al., 2019; Fernández et al., 2019; Panchanathan et al., 2019; Safiullin et al., 2019; Deng, 2019; Li, 2019); |
| • the development of entrepreneurship (Grimaldi et al., 2019; Gonzaga, 2019; Perng et al., 2018; Tay et al., 2018; Indravati et al., 2018; Carè et al., 2018); |
| 2. | URBAN LOGISTICS | • congestion (Zhao et al., 2019; Zhu & Liang, 2019; Yang & Zhu, 2019; Mishra, 2019; Reddy & Mehta, 2019; Garg et al., 2019); |
| • traffic flow management (Zheng et al., 2019; Ferrer et al., 2019; Vranken et al., 2019; Vaida & Mouftah, 2019; Chen, 2019; Kuang et al., 2019); |
| • autonomous vehicles (Li et al., 2019; Cantas et al., 2019; Schmitt et al., 2019; Ji et al., 2019; Xie et al., 2019); |
| 3. | ENVIRONMENTAL ASPECTS | • incorporating sustainable development principles into the smart city concept (Bibri, 2019; Ismagilova et al., 2019; Allam & Dhunny, 2019; Zhang & Pu, 2019; Cao et al., 2019; Chakrabarty, 2019); |
| 4. | SMART TECHNOLOGY | • IOT — the Internet of things (Mattos et al., 2019; Sittón-Candanedo et al., 2019; Heaton & Parlikad, 2019; Jan et al. 2019; Rath & Pattanayak, 2019); |
| • cloud computing (Azhdari et al., 2019; Huang et al., 2019; Min-Allah et al., 2019; Wang et al., 2019; Del Esposte et al., 2019); |
| • big data (Kong et al., 2019; Putra et al., 2019; Lakshmanaprabu et al., 2019; Luo et al., 2019; Ameer et al., 2019); |
| • artificial intelligence (Khadse et al., 2019; Marcuzzi & Tonello, 2019; Wei et al., 2019; Panchamathan et al., 2019; Bui & Jung, 2019; Hu & Jiang, 2019); |
| • wireless sensor networks (Sadeghpour et al., 2019; Chammas et al., 2019; Godoi et al., 2019; Alduais et al., 2019; Marrero et al., 2019; Alchihabi et al., 2019; Sedighian & Kashi, 2019) |
