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PPD + PDD · DAY 03EN / 中文 / ES

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SITE, ENVIRONMENT, CLIMATE & ZONING

Contour density &
landform recognition

SHR.D1.TOPO.001 R2
Original Day 03 course illustration of hills, valleys, ridges, saddles and contour elevations
Key takeaway

Read spacing first, then elevations, then water flow.

Course AI assistantFind a topic. Go a little deeper.

SIX DIVISIONS. ONE CONNECTED STUDY PATH.

PcMPjMPAPPDPDDCE

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A concept to practice.
A place to ask.

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Day by dayA structured course roadmap
R1 · R2 · R3Exam-weight ratings
Explore the PPD + PDD course
COURSE ROADMAPPPD + PDD

PPD + PDD — 60-Day Course

A structured path through Project Planning & Design and Project Development & Documentation.

60 lessons10 modules+ visual review
Exam-weight rating: R3 CoreR2 StandardR1 Peripheral
01

Site, Environment, Climate & Zoning

D3–D9 · PPD focus

03
Contours & Topography · Photovoltaic Systems33 knowledge points R3 · R2 · R1
04
Wind & Natural Ventilation · Climate-Type Strategies28 knowledge points
05
Earth Sheltering · Hydrology & Site DrainageContinue through the module
ILLUSTRATED KNOWLEDGE POINTDAY 03

Valley V-rule

SHR.D1.TOPO.002 R2
Original course figure showing contours and the valley V-rule

When a contour crosses a valley or stream channel, the V points upstream toward higher elevation. Water flows in the opposite direction.

Key takeaway

The contour V points upstream; water flows downhill.

Exam trap

Check the elevation labels before choosing the flow direction.

Put a picture
to the concept.

Read the diagram alongside the explanation. Course lessons bring together labeled illustrations, the key takeaway and the exam trap, so a technical idea becomes easier to recognize.

01

Visual explanations

See the parts, relationships and flows.

02

Key takeaways

Keep the central idea close as you read.

03

Exam traps

Understand the distinction that changes an answer.

One KP Code.
The same underlying idea.

A KP Code identifies a knowledge point in the course. Course-grounded practice uses that reference to connect the question and its explanation back to the concept.

IN THE COURSEDAY 03

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Valley V-rule

SHR.D1.TOPO.002 R2

The V in a contour points upstream toward higher elevation. Water flows toward the lower elevation.

Key takeaway

Recognize the shape. Check the labels. Follow the flow.

Open the course ↗
LESSON PRACTICE EXAMPLEPPD
Site & EnvironmentMultiple Choice

A contour line crosses a stream and forms a V. The V points northeast toward elevation 220 ft; elevations decrease southwest. Which direction does water flow?

ANortheast
BSouthwest ✓
CPerpendicular to the contour interval
DThe direction cannot be determined
Explanation

A valley V points upstream toward higher elevation, so water flows southwest toward lower elevation.

Course reference: Day 03 · SHR.D1.TOPO.002

Course content and lesson practice shown in the current product layout.

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Assistant questions use your plan’s credits.

PPD + PDD · DAY 03

Topography &
site design

SHR.D1.TOPO.002 R2

Understand how contours, elevations and drainage work together.

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Kpath AREEN   /   中文   /   ES

Good to see you, architect.
You have 240 credits Pro

Here's your study snapshot.

120Questions answered
96Correct answers
80%Accuracy rate

Practice Accuracy

80%

PPD

Exam Countdown

28

days until PPD

This Week’s Practice

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Six divisions.
One study path.

All six ARE 5.0 divisions are live for AI-generated practice today. PcM, PjM, PPD, PDD, and CE also have a 200-question fixed practice set each. PcM, PjM, PPD, PDD, and CE have complete structured courses, and PA's structured course is now live and in progress.

1
Course + fixed set live

Practice Management

Business operations, firm and project finance, and practice-wide risk management.

2
Course + fixed set live

Project Management

Project budgets, schedules, contracts, and construction phase management.

3
Course live

Construction & Evaluation

Bidding, contract administration, construction observation, and project closeout.

4
Course live

Programming & Analysis

Environmental analysis, programming, and codes applicable to project scope.

5
Course + fixed set live

Project Planning & Design

Environmental conditions, codes, building systems, project integration, and cost.

6
Course + fixed set live

Project Development & Documentation

Material systems, construction documentation, specifications, codes, and cost estimates.

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Every plan runs on credits — they cover your AI question generation and AI assistant use. Standard gets you the fixed practice set; Pro adds full structured courses; Premium adds personalized AI features on top.

Standard

$29.9

per month

50 credits / month · caps at 150

  • Fixed practice set (no structured courses)
  • AI assistant & credit-based question generation
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Premium

$119.9

per month

800 credits / month · caps at 1,600

  • Everything in Pro
  • Personalized weak-area analysis
  • Custom AI-built courses (coming soon)
  • Custom AI-built practice sets (coming soon)
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Questions, answered

Standard covers the fixed practice set plus credit-based AI assistant and question generation, but not the structured courses. If you want the full day-by-day courses too, go with Pro. Premium adds personalized weak-area analysis on top, with custom AI-built courses and practice sets coming soon.
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