Urbanization has led to various different changes in the land use structure and form of areas, both positively and negatively. Transport has a significant impact on land use, development as well as the location of man’s activities. This is further complicated in urban areas since they have a higher concentration of activities and traffic. Good transport systems have been a vast array of benefits such as poverty reduction, productivity enhancement, employment provision and environmental protection. In most settings, transport amenities attract a lot of commercial activities near them due to traffic generation. They also provide access for goods into the areas where they are sold. In terms of passengers, they link goods and services with traders and buyers. They act as conduits linking humans with their activity sites, enabling interaction among them with the ultimate goal of revenue generation from the employment possibilities provided. However, the results of this interaction between transport and commercial activities can often be negative. Issues of space contestation and informality also come up. Undesirable interactions lead to congestion and poor accessibility between activities sites.
This study examines the planning implications of locating PSV termini next to markets in Kangemi area. Interactions and their consequences are brought out, which eventually lead to proposals of appropriate intervention measures which are spatial planning oriented.
In Kangemi area in Nairobi County, there is a complex interaction system between the public service vehicles and the main market. They both depend on each other but have also have conflict in some cases since they both require a lot of space to operate efficiently. Negative effects of this interaction includes congestion, narrow access routes and lack of modal separation. Agencies have tried to come up with solutions to these such as dualling the major road, construction of an overpass that channels traffic away from the A104 road and an attempt to establishment a PSV terminus along one of the roads.
Major findings indicated that space contestation was a major problem. High human and vehicular traffic volumes in the two major land uses resulted in inadequate space. Increasing urbanization rates experienced in the area will further aggravate the current situation. There is a general lack of order of activities in the area, coupled with a high prevalence of informality, especially with regard to trading. For most residents, the informal traders were the main cause of the problem as they ate into transportation space. This is due to reduced access owing to narrow routes, modal conflict among the various modes as well as poor organization of activities attributed to haphazard space allocation by the site users.
Some recommendations to these problems includes redesigning the area to include spaces that users will consider satisfactory. This also provides the inclusion of infrastructure that will cater for the present and future users. Techniques need to be used to formalize the informal practices. All these combined efforts will jointly address the issue at hand comprehensively. This will ensure efficient mobility which is considered as a pre-requisite to effective socio-economic performance of a nation since a well-performing urban transport system plays an important role in confronting the multiple urban development challenges of poverty reduction, productivity enhancement, employment provision, infrastructure provision and environmental protection.