, 1</td>
					<td>1</td>
				</tr>
				<tr>
					<td><b>gibraltar</b></td>
					<td>Set to 1 to allow the route to go through the Gibraltar strait.</td>
					<td>0, 1</td>
					<td>1</td>
				</tr>
				<tr>
					<td><b>dover</b></td>
					<td>Set to 1 to allow the route to go through the Dover strait.</td>
					<td>0, 1</td>
					<td>1</td>
				</tr>
				<tr>
					<td><b>bering</b></td>
					<td>Set to 1 to allow the route to go through the Bering strait.</td>
					<td>0, 1</td>
					<td>