mainRoads = (await fetch("https://overpass-api.de/api/interpreter", {
method: "POST",
body: `[out:json];
(
way[highway=motorway_link]({{bbox}});
way[highway=motorway]({{bbox}});
way[highway=trunk]({{bbox}});
way[highway=primary]({{bbox}});
way[name="London Circuit"]({{bbox}});
way[highway=secondary]({{bbox}});
way[highway=tertiary]({{bbox}});
way[highway=residential]({{bbox}});
way[highway=unclassified]({{bbox}});
);
out body;
>;
out skel qt;`.replaceAll("{{bbox}}", bbox)
})).json()
