6. Conclusions
Parking choices in the rapidly growing cities around the world are not well studied. This study tries to address this gap by analyzing parking choices made by visitors at two commercial centers in the city of Doha, Qatar. One of the commercial centers was the City Center mall, where the choice was between free and paid parking. The other was the Souq Waqif shopping center where the choice was between two paid parking options with one being low capacity/close proximity and the other being farther with significantly higher capacity. The study applies the classification tree model to understand factors associated with these choices. The first application of this data mining technique led to some interesting findings with regards to the parking choice selection. At the city center mall, as expected, respondent income was an important factor in parking selection with higher income respondents being more likely to select the paid parking. However, even the lower income respondents were likely to use the paid parking if they were visiting the mall for less than one hour. It points to the need for having some spots reserved for short-term (possibly up to 60 or 90 min) parking that makes it easier for lower income visitors to be able to park at the more convenient location. At Souq Waqif, both parking options had the same pricing structure. Hence, income was not a significant factor in parking choice. Interestingly, Qatari locals of age less than 45 years, who visited the shopping center more than once a week were the likeliest cohort to use the adjacent lot (P4) with lower capacity. Some members of this cohort may be lured away from the capacity constrained lot, P4, if pricing structure at P3 offers discounts to frequent Souq Waqif visitors