Walk ability has become one of the major concerns in urban planning, in recent years. Increasing walk ability is considered as a solution for many environmental problems such as global warming, air and noise pollution, dependence on fossil fuel, and mental and physical health of urban residents as well as improving the quality of urban spaces. The aim of this research is to understand the factors affecting neighborhood walk ability for residents. As criteria for neighborhood walk ability (dependant variable) and its relation with environmental characteristics (independent variable) the related walk ability criteria are recognized. Relationships were identified using data gathered from about 200 questionnaires filled by the Chizar neighborhood residents. Relationship analysis and modeling are conducted thorough correlation analysis, factor analysis and linear regression analysis. The findings of the study show that despite expectation, there was not any relationship between walking frequency and walking pleasantness the characteristics influencing these were also different. Considering the purpose of walking as an intervening variable, it was found that walking frequency is highly correlated with necessary activity and walking measurement is highly correlated with optional activity. Examining the environmental characteristics shows that the physical characteristics, traffic levels and road networks influence walking frequency. While neighborhood environmental quality and its social dimension highly contribute to walking pleasantness.