Do not refresh vehicle pathinfo on every ttss_refresh seconds

 map.html

@@ -26,6 +26,6 @@
<script src="https://cdn.jsdelivr.net/gh/openlayers/openlayers.github.io@master/en/v5.3.0/build/ol.js" integrity="sha384-iQkGyyH4ioz3m+maM3s9MX1Oq67mACa4B9Z3ovUv3Sv37LJ96fx3WnZfLoiC3Wfl" crossorigin="anonymous"></script>
<script tyle="text/javascript" src="lang_pl.js?v6" id="lang_script"></script>
<script tyle="text/javascript" src="common.js?v6"></script>
<script tyle="text/javascript" src="map.js?v15"></script>
<script tyle="text/javascript" src="map.js?v16"></script>
</body>
</html>

 map.js

@@ -68,6 +68,7 @@
var feature_clicked = null;
var feature_xhr = null;
var feature_timer = null;
var path_xhr = null;

var route_source = null;
var route_layer = null;
@@ -417,20 +418,54 @@
    }).fail(fail_ajax);
}

function vehicleTable(tripId, table, featureId) {
    if(feature_xhr) feature_xhr.abort();
    if(feature_timer) clearTimeout(feature_timer);
function vehiclePath(feature, tripId) {
    if(path_xhr) path_xhr.abort();
	
    var featureId = feature.getId();
    var vehicleId = featureId.substr(1);
    
    var url = ttss_trams_base;
    if(featureId.startsWith('b')) {
        url = ttss_buses_base;
    }
    
    var vehicleId = featureId.substr(1);
    path_xhr = $.get(
        url + '/geoserviceDispatcher/services/pathinfo/vehicle'
            + '?id=' + encodeURIComponent(vehicleId)
    ).done(function(data) {
        if(!data || !data.paths || !data.paths[0] || !data.paths[0].wayPoints) return;
		
        var point = null;
        var points = [];
        for(var i = 0; i < data.paths[0].wayPoints.length; i++) {
            point = data.paths[0].wayPoints[i];
            points.push(ol.proj.fromLonLat([
                point.lon / 3600000.0,
                point.lat / 3600000.0,
            ]));
        }
		
        route_source.addFeature(new ol.Feature({
            geometry: new ol.geom.LineString(points)
        }));
        route_layer.setVisible(true);
    });
}

function vehicleTable(feature, table) {
    if(feature_xhr) feature_xhr.abort();
    if(feature_timer) clearTimeout(feature_timer);
	
    var featureId = feature.getId();
	
    var url = ttss_trams_base;
    if(featureId.startsWith('b')) {
        url = ttss_buses_base;
    }
    
    feature_xhr = $.get(
        url + '/services/tripInfo/tripPassages'
            + '?tripId=' + encodeURIComponent(tripId)
            + '?tripId=' + encodeURIComponent(feature.get('tripId'))
            + '&mode=departure'
    ).done(function(data) {
        if(!data.routeName || !data.directionText) {
@@ -465,31 +500,7 @@
        
        markStops(stopsToMark, featureId.substr(0,1), true);
        
        feature_timer = setTimeout(function() { vehicleTable(tripId, table, featureId); }, ttss_refresh);
		
        if(!vehicleId) return;
	       
        feature_xhr = $.get(
            url + '/geoserviceDispatcher/services/pathinfo/vehicle'
                + '?id=' + encodeURIComponent(vehicleId)
        ).done(function(data) {
            if(!data || !data.paths || !data.paths[0] || !data.paths[0].wayPoints) return;
			
            var point = null;
            var points = [];
            for(var i = 0; i < data.paths[0].wayPoints.length; i++) {
                point = data.paths[0].wayPoints[i];
                points.push(ol.proj.fromLonLat([
                    point.lon / 3600000.0,
                    point.lat / 3600000.0,
                ]));
            }
			
            route_source.addFeature(new ol.Feature({
                geometry: new ol.geom.LineString(points)
            }));
            route_layer.setVisible(true);
        });
        feature_timer = setTimeout(function() { vehicleTable(feature, table); }, ttss_refresh);
    }).fail(fail_ajax_popup);
}

@@ -602,7 +613,8 @@
            addElementWithText(thead, 'th', lang.header_time);
            addElementWithText(thead, 'th', lang.header_stop);
            
            vehicleTable(feature.get('tripId'), tbody, feature.getId());
            vehicleTable(feature, tbody);
            vehiclePath(feature);
            
            styleVehicle(feature, true);
        break;
@@ -691,6 +703,7 @@
            unstyleSelectedFeatures();
            feature_clicked = null;
            
            if(path_xhr) path_xhr.abort();
            if(feature_xhr) feature_xhr.abort();
            if(feature_timer) clearTimeout(feature_timer);
        }