One of the most interested (in seeing impact on pedestrian traffic) urban stakeholders are business improvement districts, and research on the topic of influence of construction sites on pedestrian traffic has been found as the most applicable to the topic of this paper among these stakeholders. There is more general research on quantitative methods in assessing impact in urban areas (please see a full list in References section), but specifically the topic of influence of construction on pedestrian traffic is only found in research of business improvement districts, therefore, I wanted to describe it in more detail, as more applicable. Business improvement district is a public/private partnership in which property and business owners elect to make a collective contribution to the maintenance, development, and promotion of their commercial district. In the US, Metropolitan Improvement District and Downtown Seattle Association (MID/DSA) conducted a research in which they estimated an influence of construction works on pedestrian traffic in their area - their key finding was that areas with significant decreases in pedestrian count were adjacent to road construction projects. In the study of impact it is important to understand the characteristics of a given neighborhood and, most importantly, perceptions of residents and visitors to that neighborhoods. Based on perception study conducted by MID/DSA, “for the entire survey region, half (51%) consider Downtown Seattle to be their preferred destination for a day of shopping and entertainment”. This area has a high number of visitor attractions. The case study that I was going to conduct in this paper deals with a different type of neighborhood - Grand Central Partnership (also a business improvement district, Fig. 1) - a work hub, or as they call themselves, a “working heart of Manhattan”, a global center of commerce and trade, with 70 million square feet of commercial space (for comparison, Downtown Seattle - 1.9 million square feet of commercial space). Therefore, the characters of two neighborhoods are clearly different - in one case, the imperative of getting to work despite the construction or weather condition, therefore, predictable stable amount of pedestrian traffic (Grand Central), on the other hand, a visitor attraction, shopping and entertainment hub which places high value on visitor attraction and where such interventions, as construction works or weather patterns, could have a significant impact on pedestrian traffic. With a global work hub as Grand Central area, the imperative is different. Conducting research on existing literature on this topic helped to understand that in the studying of impacts the characteristics of the neighborhoods are important to take into account, when interpreting results of the findings.