 
     projection.translate(t0 = [width / 2, height / 2])
 
-    zoom.scale(sc = 1).translate(tr = [0, 0])
+    zoom.scale(1).translate([0, 0])
+    updateProjection(1, [0, 0])
 
     actionbar.attr('transform', "translate(0, #{height - ACTIONBAR_HEIGHT})")
     actionbar.select('.background').attr('width', width)

    showLocation()
    renderScale()

  zoom.on 'zoom', ->
    tr = d3.event.translate
    sc = d3.event.scale
    render()
    updateSymbols()
    showLocation()

      .attr('class', (d) -> "highway highway-#{d.properties.grade}")

  render = ->
    segments.selectAll('.segment')
        .attr('d', path)

