Below is a map of the city of Brandfield. City planners have decided to build a new shopping mall for the area, and two sites, S1 and S2 have been proposed.

The picture illustrates some suggested sites for constructing commercial area in the city of Brandfield. There are two proposed sites namely S1 and S2 for upcoming shopping mall, which will be located in the north and south east of map respectively. On top of that, there is a main road runs through the city and is close to both potential sites, thus providing good road access to either location. The first possible layout of S1 is to the north of city centre, above the railway line, running from south east of the city to north west. If it is constructed there, it will be next to residential area thereby providing easy access for those living in the estate and the city centre. Whilst, S2 will also be surrounded by railway line in the left and main road opposite to railway. However, it will be near to industrail estate rather than housing, which will take a little bit longer to reach shopping mall.