[
	{
		"center": {
			"lat": 51.953156,
			"lng": 7.633780
		},
		"category": "railway_bridge"
	},
	{
		"center": {
			"lat": 51.952887,
			"lng": 7.635529
		},
		"category": "railway_bridge"
	}
]
[
	{
		"center": {
			"lat": 51.953156,
			"lng": 7.633780
		},
		"category": "railway_bridge"
	},
	{
		"center": {
			"lat": 51.952887,
			"lng": 7.635529
		},
		"category": "railway_bridge"
	},
	{
		"center": {
			"lat": 51.955000,
			"lng": 7.619861
		},
		"category": "traffic_light"
	},
	{
		"center": {
			"lat": 51.956195,
			"lng": 7.619414
		},
		"category": "traffic_light"
	},
	{
		"center": {
			"lat": 51.958067,
			"lng": 7.613982
		},
		"category": "traffic_light"
	},
	{
		"center": {
			"lat": 51.954452,
			"lng": 7.629762
		},
		"category": "traffic_light"
	},
	{
		"center": {
			"lat": 51.953986,
			"lng": 7.631360
		},
		"category": "traffic_light"
	},
	{
		"center": {
			"lat": 51.953743,
			"lng": 7.632647
		},
		"category": "traffic_light"
	},
	{
		"center": {
			"lat": 51.952848,
			"lng": 7.636579
		},
		"category": "traffic_light"
	},
	{
		"center": {
			"lat": 51.950887,
			"lng": 7.636928
		},
		"category": "traffic_light"
	}
]

Add ALL traffic lights of the surveyed route
Add ALL traffic lights of the surveyed route