1. Quantity Surveyor, Essex County Council, County Hall Market Rd., Chelmsford CM1 1QH, UK.
2. Senior Lecturer, Faculty of Science and Engineering, Anglia Ruskin Univ., Bishop Hall Lane, Chelmsford CM1 1SQ, UK (corresponding author). ORCID: .
3. Postgraduate Researcher, Faculty of Science and Engineering, Anglia Ruskin Univ., Bishop Hall Lane, Chelmsford CM1 1SQ, UK.
4. Senior Lecturer, Faculty of Science and Engineering, Anglia Ruskin Univ., Bishop Hall Lane, Chelmsford CM1 1SQ, UK.