Connected Communities

Connected Communities#

In this section we are going to calcualte the Connected Communities Indicator for the existing and proposed transit system.

Studied Transit Lines#

Existing Lines#

For the existing lines we are considering Trans Sarbagita and Trans Dewata. The considered routes are plotted below.

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Proposed Network#

For the proposed network we are considering the Core Routes, Feeders, Standard Routes, Regional Connector Routes and the LRT. The map below shows the considered routes as well as those that have high capacity.

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Connected Communities Indicator Calculation#

The methodology for calculating the connected communities indicator is described below:

  1. Load the High Resolution Population Density Maps from Meta, downloaded from HDX. This dataset provides number of people at a 30x30 square meter resolution.

  2. Load the Relative Wealth Index from Meta, also dowloaded from HDX. For more information about this index, see here. This dataset’s resolution is 2.4 square Km.

  3. Associate each population point to its RWI.

  4. Create a buffer around existing, proposed (exclude LRT) and LRT routes. When the route is high capacity, the buffer is 1000 meters, otherwise, it is 500 meters.

  5. Dissolved the buffer to obtain a single geometry for eahc of the three cases, existing, proposed and LRT

  6. Calculate the total population enclosed in each of the buffers.

  7. Calculate a population weighted RWI for each of the buffers. The population weighted RWI is calculated as follows

\[ RWI = \frac{\sum{population_{i}*RWI_{i}}}{\sum{population_i}} \]
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We can observe that the proposed transit system will serve 64% more of people. Regarding the population weighted RWI, both systems, existing and proposed serve populations with similar RWI, which is also higher than the one from Sarbagita and Ulapan area. This is expected, as the the wealthier population is located around Denpasar and Kuta where all the lines converge. Also, since these areas have high density, they can skew the average on their favor. It is imporant to notice that the proposed lines move away from the CBD serving populations with smaller RWI. This fact, might be lost when looking at an average RWI as mentioned before.

df
Population RWI-popweighted
Existing 757637 1.255
Proposed 1244433 1.282
LRT 69000 1.138
Sarbagita-Ulapan 2658908 1.128
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