night_accident (100 pts)

In this video, where did the car and bus almost collide?

Content Warning: There are scenes that do not result in a collision, but are similar to a road accident.

The video is on YouTube, showing a near collision between a car and a bus. On the video, both the 52 and 58 route can be seen. Meaning, the bus stop serves both of those routes.

The logic goes that we need to find bus stops that are shared by both route 52 and 58, that are near (within 15 meters) to an apartment/residential building. First of all, we can find both routes as a "way" object on OpenStreetMap. The way we can get this is pick one bus stop that we know are shared by 52 and 58 (just GPT it, there are many of them). One such example is "Opp Bishan Stn".

Now, this bus stop is part of many routes (in OSM terms, this bus stop is part of many relations).

Now we just need to take the relation number of "Svc 52" and "Svc 58" which are 1149455 and 1149478. Then, we create a script on OverpassTurbo that searches for bus stops that are both part of relations 1149455 and 1149478 . As seen from the video, the bus stop looks to be located in front of an apartment, so we need to filter the results to only those located near an apartment/residential building. To create the script, just use chatGPT.

[out:json][timeout:60];

// Step 1: Get nodes from relation 1149478
relation(1149478);
node(r)->.nodes1;

// Step 2: Get nodes from relation 1149455
relation(1149455);
node(r)->.nodes2;

// Step 3: Find common nodes
.nodes1.nodes2 -> .common_nodes;

// Step 4: Filter common nodes to only bus stops
node.common_nodes["highway"="bus_stop"]->.bus_stops;

// Step 5: Get residential buildings within 15 meters of each bus stop
// (we do this after filtering bus stops)
way["building"="residential"](around.bus_stops:15)->.res_buildings;

// Step 6: Keep only bus stops that are near residential buildings
node.bus_stops(around.res_buildings:15);

// Output results
out body;
>;
out skel qt;

Here is the result. The scripthas narrowed it down to just three.

After some checking, we can confirm that the correct bus stop is the one named Blk 115 in Bishan, Singapore.

Flag: 1.3482171332, 103.8485763967