## 4 Joint Test of _Sta_ and _Sttp_ in the City of Vienna
### Study Area and STPAs  
The test is run in the City of Vienna, Austria. The analysed individuals (A-E) live and perform their fixed activities within the 22 nd district (Donaustadt). This is the second northernmost district of Vienna, with the greatest surface (ca 102 km\({}^{2}\)), the second-highest population (ca 198,800 inhabitants), and the second-lowest population density out of the 23 city districts (1943 inhabitants/km\({}^{2}\)). The district is served by 26 bus lines, two light rail lines and two subway lines. Moreover, it is served by a road network that is denser  
Figure 2: Process for the computation of _STPA_ (black), _STA_ (red) and _STTP_ (blue).  
in the core part of the district characterised by a higher urban density and much lower at the fringes, where green areas are predominant. Given the heterogeneous availability of transport means, the area represents a suitable case study to explore the individual accessibility differences related to the transport system. Figure 3 displays the road and PT network of the study area, the location of the available opportunities, the location of the home places, and the fixed activities of the individuals.  
After defining the study area, the first step for calculating both _STA_ and _STTP_ is the setup of the _STPAS_ (summarised in Table 3 for individuals A-E). Each _STPA_ describes the categories of fixed activities daily performed, their location (not listed in Table 3), their starting and ending time, their fixity degree (expressed with a 1-5 Likert scale), and the transport mode(s) used to reach them. Individual A is a full-time worker who takes their child to school before reaching the work place, stays at the work place until late afternoon, and then comes back home in the evening. (S)He always travels by car. Individual B is a part-time worker who works in the morning and picks up their child after school on the way home at lunchtime. In the afternoon, (s)he has to stay at home for some household duties in the timespans 13:00-15:00 and after 17:30, while (s)he has free time to engage in discretionary activities between 15:00 and 17:30. (S)He always travels by car for all the mandatory travels. Individual C is a part-time worker too. In the early morning and at lunchtime (s)he takes their child to school and back home by walking. In between, (s)he has some household duties to perform at home (from 08:20 to 09:30 and from 12:00 to 14:00) and a free time to engage in discretionary activities in between (from 09:30 to 12:00). From the afternoon until the evening, (s)he works part-time. (S)He travels by PT to and from the workplace. Individual D is a pensioner who visits the hospital in the morning on a  
Figure 3: Study area and key locations of the _STPAS_ of the individuals A–E.  
daily basis and travels to and from the hospital by PT. In the afternoon, (s)he has free time to engage in discretionary activities (between 15:00 and 18:00), while (s)he has to stay at home for the other hours of the afternoon. Finally, Individual E is a teenager who goes to school. In the morning, a parent takes them to school by car. In the early afternoon, (s)he has to come back home by PT and stays at home for their mandatory activities till 18:00. Afterwards, (s)he has free time in the late afternoon to engage in discretionary activities, before having to be again at home at 20:00.