Kagiso Mokoena, a relatively experienced project manager, has been assigned to oversee the construction of the Riverside Pedestrian Bridge. The goal of the project is to provide a safe crossing for schoolchildren and pedestrians over a high$-$traffic highway. The project is funded by a local government grant and forms part of a broader infrastructure upgrade programme. During the planning phase, Kagiso used cost estimates based on a similar project completed three years ago. Under pressure to win the tender and demonstrate cost$-$efficiency, he did not include sufficient contingencies for inflation, supply chain disruptions, or specialised labour which affected project estimates. Provide recommendations to Kagiso on the techniques that he can use for future projects to improve project resource and cost projections. explain in detail