<li><spanstyle="font-weight: bold;">type</span> - 8 bits in size, tile class (bits 4..7), bridge (bits 2..3) tropic zone (bits 0..1, only valid in tropic climate)</li>
<li><spanstyle="font-weight: bold;">height</span> - 8 bits in size, stores tile height</li>
<li><spanstyle="font-weight: bold;"><spanclass="free">O</span></span> - bit is free</li>
<li><spanstyle="font-weight: bold;"><spanclass="usable">X</span></span> - bit is used, but could be freed if needed</li>
<li><spanstyle="font-weight: bold;"><spanclass="used">X</span></span> - bit is used</li>
<li><spanstyle="font-weight: bold;"><spanclass="pool">X</span></span> - bit is used for an index on a pool</li>
<li><spanstyle="font-weight: bold;"><spanclass="patch">X</span></span> - bit is introduced by a patch</li>
<li><spanstyle="font-weight: bold;"><spanclass="abuse">X</span></span> - bit of attribute is abused for different purposes, i.e. other bits define the actual meaning</li>
<li><spanstyle="font-weight: bold;"><spanclass="rearrange">X</span></span> - bit is accessed, but a rearrangement of the map array could free some of these bits (probably not done for bit alignment)</li>
<tdclass="bits"rowspan=27><spanclass="used"title="Tile type">XXXX</span><spanclass="used"title="Presence and direction of bridge above">XX</span><spanclass="used"title="Tropic Zone: only meaningful in tropic climate. It contains the definition of the available zones">XX</span></td>
<tdclass="bits"><spanclass="used"title="Type of hedge on NE border">XXX</span><spanclass="used"title="Snow presence">X</span><spanclass="free">OOOO</span></td>
<tdclass="bits"rowspan=2><spanclass="used"title="Type of hedge on SW border">XXX</span><spanclass="used"title="Type of hedge on SE border">XXX</span><spanclass="free">OO</span></td>
<tdclass="bits"rowspan=2><spanclass="used"title="Update counter">XXX</span><spanclass="used"title="Type: grass, rough land, rocks, fields, snow, desert">XXX</span><spanclass="used"title="Density">XX</span></td><tdclass="bits"rowspan=2><spanclass="free">OOO</span><spanclass="used"title="Type of hedge on NW border">X XX</span><spanclass="free">OO</span></td>
<tdclass="bits"rowspan=3><spanclass="used"title="Ship docking tile status (for half-tile with water)">X</span><spanclass="free">OO</span><spanclass="used"title="Owner">X XXXX</span></td>
<tdclass="bits"><spanclass="free">OOOO</span><spanclass="used"title="Ground type: fences, snow, desert (fences on depot are not valid)">XXXX</span></td>
<tdclass="bits"><spanclass="used"title="Tile type: simple road (00), level crossing (01), road depot (10)">OO</span><spanclass="used"title="Disallow vehicles to go a specific direction">XX</span><spanclass="used"title="Road pieces">XXXX</span></td>
<tdclass="bits"><spanclass="free">OOO</span><spanclass="used"title="Owner of rail track">X XXXX</span></td>
<tdclass="bits"><spanclass="used"title="Owner of tram">XXXX</span><spanclass="free">OOOO</span></td>
<tdclass="bits"><spanclass="used"title="Tile type: simple road (00), level crossing (01), road depot (10)">O1</span><spanclass="used"title="Lights are on">X</span><spanclass="used"title="PBS reservation">X</span><spanclass="free">OOO</span><spanclass="used"title="Direction of the rail and roads">X</span></td>
<tdclass="bits"><spanclass="free">OO</span><spanclass="used"title="Snow/desert present">X</span><spanclass="used"title="Owner of road">XXXXX</span></td>
<tdclass="bits"><spanclass="free">OO</span><spanclass="used"title="Snow/desert present">X</span><spanclass="usable"title="Owner of road depot">XXXXX</span></td>
<tdclass="bits"rowspan=2><spanclass="used"title="House random bits">XXXX XXXX</span></td>
<tdclass="bits"rowspan=2><spanclass="pool"title="Town index on pool">XXXX XXXX XXXX XXXX</span></td>
<tdclass="bits"><spanclass="used"title="House is complete/in construction (see m5)">1</span><spanclass="used"title="House type (m4 + m3[6])">X</span><spanclass="free">O</span><spanclass="usable"title="Activated triggers (bits 2..4 don't have a meaning)">XXX</span><spanclass="used"title="Activated triggers (bits 2..4 don't have a meaning)">XX</span></td>
<tdclass="bits"rowspan=2><spanclass="used"title="House type (m4 + m3[6])">XXXX XXXX</span></td>
<tdclass="bits"><spanclass="used"title="Age in years, clamped at 255">XXXX XXXX</span></td>
<tdclass="bits"rowspan=2><spanclass="abuse"title="Newhouses activated: periodic processing time remaining; if not, lift position for houses 04 and 05">XXXX XX</span><spanclass="free">OO</span></td>
<tdclass="bits"rowspan=2><spanclass="abuse"title="If newhouses active, m7 is the current animation frame">XXXX</span><spanclass="abuse"title="If newhouses active, m7 is the current animantion frame; if not, lift behaviour for houses 04 and 05">XXXX</span></td>
<tdclass="bits"><spanclass="used"title="House is complete/in construction (see m5)">O</span><spanclass="used"title="House type (m4 + m3[6])">X</span><spanclass="free">O</span><spanclass="usable"title="Activated triggers (bits 2..4 don't have a meaning)">XXX</span><spanclass="used"title="Activated triggers (bits 2..4 don't have a meaning)">XX</span></td>
<tdclass="bits"><spanclass="used"title="Number of trees on tile (+1)">XX</span><spanclass="free">OO O</span><spanclass="used"title="Tree growth">XXX</span></td>
<tdclass="bits"rowspan=2><spanclass="used"title="May have pylons">X</span><spanclass="used"title="May have wires">X</span><spanclass="used"title="Station type">XXX</span><spanclass="used"title="Reserved track">X</span><spanclass="free">O</span><spanclass="used"title="Tile is blocked">X</span></td>
<tdclass="bits"><spanclass="used"title="Owner of tram">XXXX</span><spanclass="free">OOOO</span></td>
<tdclass="bits"><spanclass="free">OO</span><spanclass="used"title="Roadtype for road stop">XX XXXX</span></td>
<tdclass="bits"><spanclass="usable"title="Graphics index">OOOO O</span><spanclass="used"title="Graphics index: 00 (exit towards NE), 01 (exit towards SE), 02 (exit towards SW), 03 (exit towards NW), 04 (drive through X), 05 (drive through Y)">XXX</span></td>
<tdclass="caption">industry under construction</td>
<tdclass="bits"><spanclass="used"title="Completed industry">O</span><spanclass="used"title="Water class">XX</span><spanclass="free">O</span><spanclass="used"title="If under construction, construction counter and stage of construction">XXXX</span></td>
<tdclass="bits"rowspan=2><spanclass="rearrange"title="Owner of tram (road only; a rearrangement can free some of these bits)">XXXX</span><spanclass="free">OOOO</span></td>
<tdclass="bits"><spanclass="used"title="Bridge or tunnel bit">O</span><spanclass="free">OO</span><spanclass="rearrange"title="PBS reservation (rail; a rearrangement can free some of these bits)">X</span><spanclass="used"title="Transport type">XX</span><spanclass="used"title="Direction of the tunnel/bridge">XX</span></td>
<tdclass="bits"rowspan=2><spanclass="free">OO</span><spanclass="used"title="Snow/desert present">X</span><spanclass="rearrange"title="Owner of road (road only; a rearrangement can free some of these bits)">X XXXX</span></td>
<tdclass="bits"rowspan=2><spanclass="free">OOOO</span><spanclass="used"title="Tram type">XXXX XX</span><spanclass="rearrange"title="Railway type (rail only; a rearrangement can free some of these bits)">XX XXXX</span></td>
<tdclass="bits"><spanclass="used"title="Bridge or tunnel bit">1</span><spanclass="free">OO</span><spanclass="rearrange"title="PBS reservation (rail; a rearrangement can free some of these bits)">X</span><spanclass="used"title="Transport type">XX</span><spanclass="used"title="Direction of the tunnel/bridge">XX</span></td>