Calculating Distance Revision Notes for Grade 10 NSC Matric Tourism

Calculating Distance

Introduction

When planning tours and trips, tourists need to know how far they will travel. Distance indicators and distance tables are essential tools that help tourists work out:

How far they can travel in a day
How much time they need to spend driving
How long they can spend at each destination or attraction

Understanding how to calculate distances is a key skill in tourism planning.

Distance indicators on maps

Maps use special numbers to show distances, making it easier to plan journeys.

What are distance indicators?

Red or black numbers displayed on roads shown on maps
These numbers represent the distance in kilometres between towns or cities

infoNote

Using Distance Indicators Effectively

When you look at a map, find the road you plan to travel on. The numbers along that road tell you exactly how many kilometres it is from one town to the next. This helps you plan your route effectively.

Distance tables

Distance tables are organised charts that provide a quick reference for distances between multiple locations.

Where to find distance tables:

Map books
Tourism brochures
Road atlases

Purpose of distance tables: Distance tables serve several important functions in tourism:

Plan self-drive tours and routes efficiently
Work out distances between different towns or cities quickly
Compare different route options

infoNote

Understanding Distance Table Format

Distance tables are arranged in rows and columns, creating a grid format. To find the distance between two places, locate one place in the row and the other in the column, then find where they intersect in the table.

Travel time calculations

Knowing the distance is only part of planning. You also need to calculate how long the journey will take.

Basic calculation method

To work out driving time, use this simple formula:

$\text{Travel time} = \frac{\text{Distance}}{\text{Speed}}$

In South Africa, the average driving speed used for calculations is 100 km per hour.

lightbulbExample

Worked Example: Calculating Journey Time

Let's work through a practical calculation:

Given:

Distance to travel: 581 km
Average speed: 100 km/hour

Step 1: Apply the formula $\text{Travel time} = \frac{\text{Distance}}{\text{Speed}}$

Step 2: Substitute the values $\text{Travel time} = \frac{581 \text{ km}}{100 \text{ km/hour}} = 5.81 \text{ hours}$

Step 3: Convert to hours and minutes

0.81 hours × 60 minutes = 48.6 minutes

Answer: The journey will take approximately 5 hours and 48 minutes.

Factors affecting travel time

Remember that your actual travel time may differ from your calculation because of several factors:

infoNote

Real-World Factors to Consider

Number of stops: Toilet breaks, meal stops, and sightseeing stops add time
Legal speed limits: You may need to drive slower than 100 km/hour in certain areas
Road conditions: Poor roads, roadworks, or gravel roads slow you down
Weather conditions: Rain, fog, or strong wind require slower, safer driving speeds

chatImportant

Exam Tip: Showing Your Working

When calculating travel time in assessments, always use 100 km per hour unless the question specifies a different speed. Show your working clearly: write the formula, substitute the values, and then calculate the answer.

Remember!

bookmarkSummary

Key Points to Remember:

Distance indicators are the red or black numbers on map roads that show kilometres between towns
Distance tables in map books help you quickly find distances between multiple destinations
Basic travel time formula: $\text{Distance} \div \text{Speed} = \text{Time}$
Standard calculation speed: Use 100 km per hour as the average driving speed
Real-world factors: Always consider stops, speed limits, road conditions, and weather when planning actual journey times
Show your working: In exams, write out the formula and calculations clearly to earn full marks

Calculating Distance (Grade 10 NSC Matric Tourism): Revision Notes