To develop good walkways, drainage is one of the factors that the team should consider. For safe and comfortable sidewalks, proper drainage is necessary. Providing a slight cross slope on walkways prevents pooling of water and guarantees good drainage, more so in places where ice can form. A maximum cross slope of two percent is prescribed. This prescription provides enough drainage but does not hinder access by people who are disabled.
Installation of a sub-drain system should be done for walkaways just before the curb to facilitate drainage far from the base to minimize frost heave in cold places. Also, provision of subgrade of quick drainage material can reduce frost heave in areas with poorly drained soils.
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Another factor is the street trees. They are crucial in the enhancement of the aesthetic of the corridor. Shade provision and green environment help in the definition of corridor character. The presence of mature trees also enhances the value of the adjacent property. However, if trees are poorly sited, it can damage the walkways. To ensure trees thrive and do not interfere with utilities around proper site conditions, including soils, tree selection and all essential are a necessary consideration. Trees should be “limbed up” to ensure branches grow up and far from walkways. Trees that grow or droop are a threat to pedestrian and vehicles.
Poor base soil and sub-base preparation are one of the factors that hinder walkways development. It can be avoided by using proper construction techniques that consider all varieties of soils that underlie the sidewalks, seasonal condition that impact soils are underlying walkways. Another factor that hinders walkways development is nearby roots that result in displacement or cracks. It can be avoided through proper construction techniques that consider the type of tree and placement and walkway design (use of average sub-drainage, thickness, and reinforcement). Also, beside environment related aspects, retribution by some stakeholders can also act as a hindrance to such development (Mason et al., 2013).
References
Mason, D. J., Leavitt, J. K., & Chaffee, M. W. (2013). Policy and Politics in Nursing and Healthcare-Revised Reprint . Elsevier Health Sciences.
Reference
Mullen, C. A. (2000). Constructing co-mentoring partnerships: Walkways we must travel. Theory into practice, 39(1), 4-11.
