The design of street layouts in urban areas in developing countries has been centered around motorized transportation with little close to no consideration to non-motorized modes of transport. This has resulted in increased congestion, poor urban air quality, reduced safety for pedestrians and cyclists and poor health of urban residents. The transport planning of street layouts , especially within Nairobi City, has not adequately taken care of non-motorized transport (NMT) such as walking and cycling and the ac tivities that occur around them resulting in competing use of pavements and roads, exposing pedestrians, cyclists, handcart operators and street vendors to insecurity and harass ment. Through observation and interview methods, this study e xamined the current condition of the street layout along Luthuli and Haile Selassie Avenues and documented the NMT activities occurring along the two streets. The study aimed at assessing the impact street layout has on non-motorized transportation activities in order to determine both the positive and negative aspects of urban street design, in an attempt to improve the built environment of identified streets and in any other forthcoming redevelopments. It emerged that physical form and qualities of a place shape the way it is used, and the way people and vehicles move through it. Therefore, this study recommended that urban street design should help create spaces that connect w ith each other sustainably providing the right conditions to enco urage walking, cycling and use of public transport.
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